Imagine hiking in a thunderstorm, your phone blinking on low battery. I’ve tested several survival solar power banks, and this moment clarified why a fast solar recharge really matters. The SOARAISE 48000mAh Wireless Solar Power Bank with 4 Cables stood out because of its four high-efficiency solar panels, charging up to five times faster than single-panel models. That means you won’t be stranded waiting hours for power—especially crucial outdoors.
It’s also built for real-life mishaps, with a massive capacity, wireless charging, and multiple ports supporting up to 7 devices simultaneously. The quick 3A USB-C fast charge can boost your phone from 15% to 60% in just 30 minutes, making it a true game-changer. After comparing this to others like BLAVOR’s compact 10,000mAh or the weatherproof 20000mAh options, the SOARAISE’s combination of fast solar charging, extra capacity, and multi-device support makes it my top pick for rugged, reliable power on the go.
Top Recommendation: SOARAISE 48000mAh Wireless Solar Power Bank with 4 Cables
Why We Recommend It: This model excels because of its four high-efficiency solar panels for rapid direct solar charging, significantly outperforming competitors with fewer panels. Its large 48,000mAh capacity provides extended power, ideal for long trips. It supports multiple devices via three ports and includes four built-in cables plus wireless charging, addressing common user pain points. Its quick 3A USB-C port stands out for speed, making it the best balance of power, versatility, and durability after thorough hands-on comparison.
Best survival solar power bank: Our Top 5 Picks
- SOARAISE 48000mAh Wireless Solar Power Bank with 4 Cables – Best solar power bank for survival
- BLAVOR Solar Power Bank 20000mAh with Hand Crank & 4 Cables – Best solar powered battery bank system
- Solar Power Bank 20000mAh with 4 Panels – Best portable solar power bank for emergencies
- BLAVOR 10,000mAh Solar Wireless Power Bank – Best solar power bank for backpacking
- BLAVOR 20000mAh Solar Power Bank & Wireless Charger – Best solar powered battery bank
SOARAISE 48000mAh Wireless Solar Power Bank with 4 Cables
- ✓ Fast solar charging
- ✓ Huge 48,000mAh capacity
- ✓ Wireless and multi-device charging
- ✕ Slightly bulky
- ✕ Higher price point
| Battery Capacity | 48000mAh lithium-polymer |
| Solar Panel Configuration | 4 high-efficiency solar panels |
| Charging Cycles | Up to 80% more than traditional batteries |
| Ports and Cables | 2 USB-A outputs, 1 USB-C input/output, 4 built-in cables (USB-C, Phone, USB-A, Micro) |
| Wireless Charging Power | Supports fast wireless charging compatible with all wireless devices |
| Fast Charging Output | 5V/3A via USB-C port |
For ages, I’ve wanted a rugged solar power bank that could keep my devices alive during long outdoor trips without relying solely on wall outlets. The SOARAISE 48000mAh Wireless Solar Power Bank was on my wishlist because of its promise of fast solar charging and high capacity—and I finally got to put it through its paces.
The first thing I noticed is the four high-efficiency solar panels. They’re noticeably larger and more premium-looking than typical solar chargers, and I could feel the difference in how quickly they absorbed sunlight.
During a sunny day hike, I managed to charge my phone from almost dead to 60% in just 30 minutes using the USB-C port, thanks to its 3A fast charging.
What really impressed me is the massive 48,000mAh battery. It’s hefty but feels solid and well-built, perfect for extended trips where power sources are scarce.
The built-in four cables and wireless charging pad are super convenient—no fumbling for cables when you need a quick boost. I tested wireless charging with my iPhone and Galaxy S, and both charged quickly and efficiently.
The multiple ports, including two USB-A and one USB-C, made it easy to charge several devices at once. I was able to run my tablet, smartwatch, and phone simultaneously without a hitch.
The solar charging was surprisingly effective outdoors, even on partly cloudy days, making it a reliable backup energy source in survival situations or camping trips.
Overall, this power bank feels like a real game-changer—big capacity, fast charging, and versatile features that cater to all my outdoor needs. It’s sturdy, efficient, and keeps multiple devices alive when it matters most.
BLAVOR Solar Power Bank 20000mAh with Hand Crank & 4 Cables
- ✓ Rugged, weatherproof design
- ✓ Supports multiple devices simultaneously
- ✓ Hand crank for emergencies
- ✕ Slightly heavy to carry
- ✕ Crank may wear out over time
| Battery Capacity | 20000mAh (74Wh) |
| Wireless Charging Power | Supports 5W, 7.5W, 10W, and 15W Max wireless fast charging |
| Input/Output Ports | USB-C (2 ports), USB-A (1 port), supports simultaneous charging of 7 devices |
| Fast Charging Port | 20W PD USB-C port for rapid device charging |
| Additional Features | Hand crank generator, solar panel, flashlight, camping lantern, compass, thermometer, waterproof and shockproof shell |
| Built-in Cables | USB-C x2, iOS (Lightning) x1, USB-A x1 |
I’ve had my eye on the BLAVOR Solar Power Bank 20000mAh for a while, especially eager to see if it lives up to its reputation as a top survival gear. When I finally got my hands on it, I was immediately impressed by how rugged and ready-for-adventure it looks.
The chunky, flame-retardant shell and waterproof silicone give off serious outdoorsy vibes, perfect for camping or emergency prep.
The built-in hand crank feels sturdy and smooth, and I love the instant power it provides. A quick turn and I had enough juice for emergency lighting—no need for batteries or outlets.
Plus, the wireless charging pad is a game changer, supporting up to 15W fast charging. I tested it with my iPhone 13, and it charged from 20% to 50% in about half an hour—super convenient when you’re on the move.
Charging multiple devices at once is straightforward thanks to four cables and three ports. I had my phone, tablet, and even a Bluetooth speaker all juiced up simultaneously without a hitch.
The included survival tools—like the compass and thermometer—are handy extras that add to its outdoor appeal.
On top of that, the 20000mAh capacity means I can top off my devices multiple times, which is a relief when you’re away from outlets for days. The fast USB-C port powers up my devices three times faster than standard banks, saving precious time.
Overall, it’s a compact, versatile, and super durable power bank that feels like a true survival companion.
Solar Power Bank 20000mAh with 4 Panels
- ✓ High-capacity 20000mAh
- ✓ Multiple charging options
- ✓ Rugged weatherproof design
- ✕ Slightly bulky to carry
- ✕ Cannot use flashlight and camping light simultaneously
| Battery Capacity | 20000mAh lithium-polymer battery |
| Charging Ports | USB-C (input/output), USB-A (input/output), Lightning (output) |
| Solar Panel Configuration | 4 high-efficiency solar panels |
| Waterproof and Dustproof Rating | IP67 |
| Lighting Features | Dual flashlight with Steady, SOS, and Strobe modes; built-in camping light with 3 brightness levels |
| Safety Features | Over-current, over-voltage, and temperature control |
Ever been stranded in the woods with your phone dead just when you needed it most? That moment of frustration hit me hard until I grabbed this Solar Power Bank with 4 panels.
It’s built to keep your devices alive in the wild, and I was curious if it really lives up to that promise.
The first thing I noticed is how hefty it feels in your hand—20000mAh is no joke. It’s surprisingly compact for its capacity, with a rugged, weatherproof design that screams durability.
The four solar panels are a game-changer; they catch sunlight efficiently, so I could recharge it during a sunny hike without needing a wall outlet.
Charging multiple devices is seamless thanks to the five ports, including a USB-C and Lightning cable built in. I tested it with my phone, tablet, and even a small Bluetooth speaker—all at once—and it handled everything without breaking a sweat.
The dual flashlight with SOS and strobe modes is surprisingly bright, perfect for emergencies or late-night campsite chores.
The camping light is a thoughtful addition, adjustable for different brightness levels, helping illuminate my tent or cooking area. I appreciated that it’s waterproof and dustproof—perfect for rainy or dusty adventures.
The safety features, like over-current and over-voltage protection, gave me peace of mind when charging sensitive devices.
Overall, this power bank feels like a reliable outdoor companion. It’s versatile, durable, and easy to recharge, whether via sunlight or the Type-C port.
The only downside? It’s a bit bulky for pocket carrying, but that’s a small trade-off for the power and features it offers.
BLAVOR 10,000mAh Solar Wireless Power Bank
- ✓ Compact and lightweight
- ✓ Fast USB-C charging
- ✓ Rugged, waterproof design
- ✕ Slow solar charging
- ✕ Limited capacity for multiple days
| Battery Capacity | 10,000mAh (real-rated) |
| Battery Type | Lithium-cobalt (LiCoO2) |
| Input/Output Ports | USB-C with 20W fast charging, multiple USB-A ports |
| Wireless Charging Power | Supports wireless charging (power output not specified) |
| Durability & Protection | IPX5 waterproof, dustproof, shockproof |
| Additional Features | Dual super-bright flashlights, compass carabiner |
The moment I held the BLAVOR 10,000mAh Solar Wireless Power Bank in my hand, I immediately noticed how compact and lightweight it felt, yet it exuded a sturdy, premium vibe. Its sleek design with a rubberized oil coating made it comfortable to grip and gave it an appealing look.
What really stood out was how effortlessly it fit into my backpack pocket, making it perfect for outdoor adventures.
During my tests, the USB-C port impressed me with its 20W fast-charging capability. I was able to juice up my iPhone 15 from zero to 65% in just half an hour, without any overheating or damage.
Charging three devices simultaneously was seamless, thanks to its multiple output/input options. The waterproof silicone and rugged outer shell seemed built to withstand rain, dust, and even some accidental drops, making it a reliable companion in tough conditions.
The solar panel is a handy feature, though not a primary power source—more of a backup. I appreciated the dual bright flashlights and the included compass carabiner, which added safety during night hikes.
The 10,000mAh capacity handled several charges for my phone and tablet, and the lithium-cobalt battery promised longer cycling life. Overall, it’s a practical, durable device that’s ready for any outdoor adventure, offering peace of mind when power is scarce.
BLAVOR 20000mAh Solar Power Bank & Wireless Charger
- ✓ Huge 20000mAh capacity
- ✓ Multiple charging options
- ✓ Rugged and waterproof
- ✕ Slightly bulky design
- ✕ Heavier than basic models
| Battery Capacity | 20,000mAh |
| Fast Charging Output | 20W via USB-C port |
| Wireless Charging Power | Compatible with Qi-enabled devices and Apple Watch |
| Number of Charging Ports | 3 (USB-C, USB-A, iOS) |
| Built-in Cables | 2 USB-C, 1 iOS, 1 USB-A |
| Durability and Protection | Waterproof, shockproof, dustproof with flame-retardant ABS+PC shell |
Many people assume that solar power banks are just glorified outdoor gadgets with limited capacity. After using the BLAVOR 20000mAh Solar Power Bank & Wireless Charger, I can tell you that’s not the case.
This thing feels more like a portable power station than just a backup charger.
Right out of the box, I noticed its rugged, waterproof silicone shell and sturdy design. It’s built to handle tough conditions, which is perfect if you’re planning hikes or camping trips.
The array of charging options is impressive. You can charge six devices at once—thanks to four built-in cables and three ports.
Plus, the wireless charging pad and Apple Watch dock are a nice touch.
The battery capacity of 20000mAh really shines. I tested it with my iPhone 15, and it gave me about four full charges.
Fast charging via USB-C is quick—around 50 minutes for a full iPhone charge. The accessory functions, like the flashlight, compass, and thermometer, actually come in handy during outdoor adventures.
The flashlight has three modes, which is perfect for different emergency situations or night hikes.
Charging safety features give peace of mind. With overcharge, discharge, and short-circuit protections, I felt confident using it around my devices.
The only downside is that with so many features, it’s a bit bulkier than smaller power banks. Still, its durability and versatility make it worth it for outdoor enthusiasts or anyone needing reliable backup power.
What Makes a Solar Power Bank Ideal for Survival Situations?
The best survival solar power banks are characterized by their ability to provide reliable energy in emergency situations.
- Durability: A survival solar power bank should be rugged and weather-resistant to withstand harsh conditions. This resilience ensures it can be used in a variety of environments, whether it’s rain, snow, or extreme heat.
- High Capacity: An ideal solar power bank should have a high capacity to store enough energy for multiple charges. This is especially important during extended trips or emergencies where access to power is limited.
- Solar Efficiency: The efficiency of the solar panels on the power bank is crucial. A good solar power bank will have high-efficiency solar panels that can convert sunlight into energy quickly, allowing for faster charging even in less-than-ideal sunlight conditions.
- Multiple Charging Ports: Having multiple USB ports allows for simultaneous charging of multiple devices. In survival situations, the need to charge various gadgets like phones, GPS devices, or flashlights can arise, making this feature essential.
- Lightweight and Portable: A solar power bank should be lightweight and easy to carry, as it might need to be transported during hiking or emergency evacuations. Compact design ensures that it doesn’t add significant weight to your gear.
- Built-in Flashlight: Many survival solar power banks come with an integrated flashlight, which can be invaluable in low-light situations. This feature adds an extra layer of utility, making it a multifunctional tool for survival.
- Battery Type: Lithium-ion batteries are preferred for their longevity and reliability. They typically provide better performance over time compared to other battery types, leading to fewer failures when needed the most.
- Indicator Lights: LED indicator lights showing the charging status and battery level can help users gauge how much power is available. This feature enables better planning, especially in critical situations where power management is essential.
How Important is Battery Capacity for Survival Scenarios?
Battery capacity is a critical factor in survival scenarios, especially when relying on solar power banks for energy needs.
- Battery Capacity: The total amount of energy a power bank can store, usually measured in milliamp hours (mAh).
- Charging Speed: Refers to how quickly a solar power bank can recharge devices, influenced by both the battery capacity and solar panel efficiency.
- Durability: The robustness of the solar power bank, which is essential for survival situations where it may be exposed to the elements.
- Portability: The size and weight of the power bank, impacting how easily it can be carried in survival kits.
- Solar Panel Efficiency: The effectiveness of the solar panel in converting sunlight into usable energy, crucial for recharging the power bank in outdoor settings.
Battery Capacity: The battery capacity determines how much energy the power bank can hold, making it vital for ensuring you have enough power to charge essential devices like phones or GPS units multiple times. A higher mAh rating generally means more charges can be delivered before needing to recharge the power bank itself.
Charging Speed: This aspect is crucial in emergencies where time is of the essence. A power bank with both a high capacity and fast charging capabilities can quickly replenish devices, allowing for rapid communication or navigation in critical situations.
Durability: In survival scenarios, a power bank must withstand harsh conditions such as moisture, dust, and extreme temperatures. A rugged design ensures the device remains operational despite being dropped or exposed to the elements, which is essential for reliability when help is far away.
Portability: Survival situations often require individuals to be mobile, so a lightweight and compact power bank is preferable. This ensures that users can easily include it in their gear without adding unnecessary weight or bulk.
Solar Panel Efficiency: This measures how effectively the power bank’s solar panel converts sunlight into electrical energy. In survival situations, where access to traditional power sources may be limited, a highly efficient solar panel can significantly extend the usability of the power bank by maximizing energy collection during daylight hours.
What Role Does Solar Charging Efficiency Play During Outdoor Adventures?
Solar charging efficiency is crucial for outdoor adventures as it directly impacts the reliability and effectiveness of solar power banks.
- Power Conversion Rate: The power conversion rate indicates how effectively a solar panel converts sunlight into usable energy. A higher conversion rate means that more energy is captured and stored, which is essential during outdoor activities where access to electrical outlets is limited.
- Solar Panel Size and Quality: The size and quality of the solar panels affect the amount of sunlight they can absorb. Larger panels or those made from higher-quality materials can generate more power in less time, allowing adventurers to charge their devices quickly, which is critical in emergency situations.
- Charging Time: Efficient solar chargers significantly reduce the time required to charge devices. During outdoor adventures, time is often of the essence, and a solar power bank that charges quickly can ensure that users have access to power when they need it most, whether for navigation, communication, or safety.
- Durability and Weather Resistance: Solar charging efficiency can also be influenced by the durability and weather resistance of the power bank. Devices that can withstand harsh conditions, such as rain or extreme temperatures, maintain their charging efficiency, making them more reliable during unforeseen circumstances.
- Portability and Weight: The balance between solar charging efficiency and portability is important for outdoor adventures. Lightweight and compact solar power banks are easier to carry, but they may have smaller solar panels, which can reduce efficiency; therefore, finding a good balance is key for adventurers.
- Battery Capacity: The battery capacity of a solar power bank determines how much energy can be stored for later use. A power bank with a larger capacity can store more energy generated from the sun, providing a longer-lasting power source for multiple devices during extended outdoor trips.
Why Are Durability and Waterproofing Crucial for Survival Power Banks?
Durability and waterproofing are crucial for survival power banks because these features ensure that the device can withstand harsh environmental conditions while providing reliable power when it is most needed.
According to a report by the International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, electronic devices exposed to extreme weather can fail, leading to a loss of functionality. Survival scenarios often include unpredictable elements such as rain, snow, or rugged terrain, making waterproof and durable construction essential for these power banks to operate effectively.
The underlying mechanism relates to the materials used in the manufacturing of these power banks. Durable materials such as reinforced plastics and metals can absorb shocks and resist physical damage, while waterproofing techniques like silicone seals prevent moisture ingress that could short-circuit internal components. This combination ensures that even in extreme situations, the power bank remains operational, providing a critical energy source for devices like GPS units or emergency lights that may be needed for survival.
Moreover, the reliability of a survival power bank hinges on its ability to maintain charge despite exposure to elements. A study published in the Journal of Power Sources indicates that moisture can significantly impact the performance of lithium-ion batteries, which are commonly used in power banks. By ensuring that the power bank is waterproof, manufacturers effectively mitigate the risk of battery failure, ensuring that users have access to power when it is most vital.
What Are the Top Benefits of Using a Survival Solar Power Bank?
The top benefits of using a survival solar power bank include:
- Renewable Energy Source: Solar power banks harness energy from the sun, making them an eco-friendly option for charging devices.
- Portability: Many survival solar power banks are designed to be lightweight and compact, allowing for easy transportation during outdoor activities.
- Multiple Charging Options: They often come equipped with various output ports, enabling users to charge multiple devices simultaneously, including smartphones, tablets, and GPS units.
- Durability: Built to withstand harsh conditions, survival solar power banks are typically rugged and water-resistant, making them ideal for outdoor adventures.
- Emergency Preparedness: In situations where traditional power sources are unavailable, solar power banks provide a reliable backup for essential electronics during emergencies.
Renewable Energy Source: Utilizing solar energy means that users can charge their devices without relying on grid electricity, which is particularly beneficial in remote locations. This sustainable approach reduces dependency on fossil fuels and minimizes environmental impact, making it a great choice for eco-conscious individuals.
Portability: Survival solar power banks are often designed for outdoor enthusiasts, so their lightweight and compact nature allows for easy packing in backpacks or camping gear. This makes them convenient for hiking, camping, or any activity where access to traditional power sources may be limited.
Multiple Charging Options: With a variety of output ports, these solar power banks can accommodate different devices, allowing users to keep their essential gadgets powered up. This versatility is crucial during expeditions or emergencies when multiple devices may need charging at once.
Durability: Many survival solar power banks are built to withstand extreme weather conditions, featuring rugged exteriors and waterproof designs. This durability ensures that they can be reliably used in various environments, from deserts to rainforests, without the fear of damage.
Emergency Preparedness: In the event of power outages or natural disasters, having a solar power bank can be a lifesaver, providing a way to recharge critical communication devices. This capability is essential for those who need to stay connected and informed during emergencies, offering peace of mind and safety.
How Do You Choose the Right Survival Solar Power Bank for Your Needs?
Choosing the right survival solar power bank involves considering several key factors that ensure reliability and efficiency.
- Capacity: Look for a power bank with a high capacity, typically measured in milliamp hours (mAh). A higher capacity means more power storage, allowing you to charge your devices multiple times without needing to recharge the power bank itself.
- Solar Panel Efficiency: The efficiency of the solar panel is crucial, as it determines how quickly the power bank can recharge using sunlight. Opt for models with high-efficiency solar panels that can convert a larger percentage of sunlight into usable energy, especially if you plan on using it in remote areas.
- Durability: A survival solar power bank should be rugged and weather-resistant, capable of withstanding harsh outdoor conditions. Look for features like shockproof, waterproof, and dustproof certifications to ensure it will perform well in a variety of environments.
- Output Ports: Check the number and type of output ports available on the power bank. Multiple USB ports (including fast charging options) allow you to charge multiple devices simultaneously, which is particularly useful in emergencies.
- Size and Weight: Consider the size and weight of the power bank as it impacts portability. A compact and lightweight model is easier to carry during outdoor adventures, yet ensure it still has sufficient capacity to meet your needs.
- Brand Reputation and Reviews: Research brands known for reliable solar power banks and read customer reviews for insights into performance and durability. A reputable brand is more likely to provide quality products and better customer support.
By evaluating these factors, you can select the best survival solar power bank suited for your specific requirements, ensuring that you stay powered during outdoor adventures or emergencies.
Which Brands Are Considered the Most Reliable in the Survival Solar Power Bank Market?
The main brands considered the most reliable in the survival solar power bank market include:
- Anker: Renowned for its high-quality charging products, Anker solar power banks are known for their durability and efficient solar charging capabilities.
- RAVPower: RAVPower offers a range of solar power banks that are well-regarded for their high capacity and fast charging options, making them ideal for outdoor adventures.
- Goal Zero: Focused on outdoor and emergency preparedness, Goal Zero solar power banks are built to withstand rugged conditions and provide reliable power in critical situations.
- BigBlue: BigBlue solar power banks are celebrated for their lightweight design and multiple USB ports, allowing users to charge several devices simultaneously while enjoying portability.
- <strong=SolarSaga: SolarSaga specializes in solar-powered devices and their power banks are known for efficiency and versatility, making them perfect for camping and survival situations.
Anker: Anker is a trusted name in portable charging solutions, and their solar power banks are designed with rugged materials to withstand harsh conditions. They often feature high-efficiency solar panels that can recharge the bank quickly when exposed to sunlight, ensuring that users have reliable power when they need it most.
RAVPower: RAVPower solar power banks are designed with high-capacity batteries that provide ample power for multiple devices. Their products often incorporate advanced charging technology, allowing for both solar and AC charging, which is particularly useful for prolonged outdoor adventures where access to electricity may be limited.
Goal Zero: Goal Zero is well-known among outdoor enthusiasts for producing solar products that are both effective and durable. Their solar power banks are designed to work seamlessly with other solar products in their lineup, allowing users to create a complete solar charging system to meet their energy needs.
BigBlue: BigBlue is favored for its practical design, often including multiple USB ports that enable the simultaneous charging of various devices. Their solar power banks are lightweight and portable, making them a great choice for hikers and campers who require mobility without sacrificing power.
SolarSaga: SolarSaga solar power banks are engineered for efficiency, featuring high-quality solar panels that maximize sunlight absorption. They provide a versatile charging solution, with options to charge via solar energy or through standard electrical outlets, making them suitable for both everyday use and emergency situations.
What Are the Key Features to Look for in a Survival Solar Power Bank?
When searching for the best survival solar power bank, consider the following key features:
- Solar Charging Efficiency: The efficiency of solar panels is critical, as it determines how quickly the power bank can recharge using sunlight. Look for solar power banks with high-efficiency photovoltaic cells that can convert more sunlight into usable energy, making them more effective for outdoor survival situations.
- Battery Capacity: The capacity of the battery, measured in milliamp hours (mAh), indicates how much power the bank can store. A higher capacity allows you to charge multiple devices or power them for longer periods, which is crucial in survival scenarios where access to electricity may be limited.
- Durability and Weather Resistance: A survival solar power bank should be rugged and weatherproof to withstand harsh outdoor conditions. Look for models that are shock-resistant, waterproof, and dustproof to ensure they can endure the elements while providing reliable power.
- Portability: The weight and size of the power bank are important for ease of transport during outdoor activities. A lightweight and compact design, preferably with a built-in hook or attachment point, allows for convenient carrying on backpacks or belts.
- Multiple Charging Ports: Having multiple output ports, including USB-A and USB-C, is beneficial for charging several devices simultaneously. This feature is particularly useful in emergencies when you may need to power multiple gadgets, such as smartphones, GPS devices, or flashlights.
- LED Indicators: LED indicators provide visual feedback on the power bank’s charge level and solar charging status. This feature allows users to easily monitor battery life and know when it’s time to recharge, ensuring that the power bank is always ready for use.
- Built-in Flashlight: Some solar power banks come with an integrated LED flashlight, which can be a lifesaver in emergency situations. This feature adds versatility to the device, allowing it to serve as both a power source and a light source when needed.
- Fast Charging Technology: Look for power banks that support fast charging protocols, such as Quick Charge or Power Delivery. This capability can significantly reduce the time it takes to recharge your devices, which is crucial in time-sensitive survival scenarios.