Its low mass (only 13kg) and high specific energy density (150Wh/kg) qualify the 12V batterie to be the ultimate off-grid trekker’s favourite. Take for instance its 100Ah capacity. Its energy density allows it to drive a car refrigerator (50W) for 24 hours non-stop, an LED lamp (10W) for 120 hours, or a drone (60W) to be recharged 16 times, far surpassing that of traditional lead-acid batteries (22kg with the same capacity, having energy density only 40Wh/kg). The requirement for lightweight energy storage devices is increased by 42% according to the 2023 Outdoor power Supply market report. This batterie reduces volume by 30% through a laminated battery cell process and can be used in space-constrained applications such as RVS and ships.
Flexibility in extreme environments is another critical advantage. This batterie uses LiFePO4 cells and has an output efficiency of more than 85% between -20°C and 60° C. In addition, it maintains a cycle life of as much as 2,000 times at a high temperature of 50°C (in contrast to 500 times for lead-acid batteries). For instance, one particular expedition team in Alaska tested and proved that at a temperature condition of -15°C, its original current loss was only 8% (45% in lead-acid batteries), and it powered successfully 72 hours on a blizzard satellite communication devices with a maximal power of 200W. Its IP67 protection level and shock-resistant design (resisting 5G vibration acceleration) ensure zero-failure performance on the road. In the 2022 China Silk Road Rally, the used team failure rate has decreased by 90% compared to last year.
The charging efficiency and compatibility have been enhanced further for convenience. This batterie has multi-source inputs such as solar and on-board generators, and a maximum charge capacity of 800W (0-100% charging time of 1.5 hours), and supports over 80% of off-grid inverters available in the market. For instance, when paired with a 400W solar panel, the daily charging capacity can be 2.4kWh (for 5 hours of sunlight), meeting the minimum power demand of a three-person expedition team. Its intelligent BMS can increase the charging and discharging efficiency to 95%, reducing energy waste by 20% compared to lead-acid batteries (with an efficiency of 75%-85%). It has been estimated by Bloomberg New Energy Finance (BNEF) that off-grid users of this batterie save an average yearly fuel cost by 65% and payback time by 2.3 years.
Security is no inferior in priority compared to maintenance cost. The LiFePO4 chemical system is risk-prone by thermal runaway at a chance of 0.002 per million hours and contains no memory effect, with immediate usage capacity available after it’s charged. On the 2021 Amazon Rainforest scientific research expedition, this batterie worked for 30 days in a state of 95% humidity without leakage or corrosion, while over the same period, lead-acid batteries experienced 37% capacity loss from sulfation. Its self-discharge is less than 3% per month (5%-15% for lead-acid batteries), and it can be quickly brought back to life after extended periods of dormancy. In addition, the maintenance-free configuration minimizes the operating and maintaining expense to almost zero in a life cycle of 10 years, with the savings of $800 over lead-acid batteries (average annual maintenance expense: $80).
The modular expansion function can accommodate different demands. Parallel connection to expand the capacity from 100Ah to 600Ah (total power: 7.2kW) is available for users, and the marginal cost of an expansion decreases by 12%. For instance, the African wildlife photography team initially planned a 200Ah system. Subsequently, after some more equipment additions (e.g., 4K cameras, drone base stations), it was upgraded to 400Ah. The total cost was 18% lower than a one-time purchase. Its wireless parallel technology is able to reduce line loss by 30%, and the health of each unit (SOH accuracy ±2%) can be monitored in real time through the APP to ensure system stability.
Overall, this 12V batterie revolutionizes off-grid energy solutions by its high energy density, harsh environment endurance, and quick charging ability. As of 2024, its market share stood at 29% of the off-grid energy storage market, according to the Global Outdoor Equipment Association, which makes it the preferred source of power among adventurers, RV enthusiasts, and rescue teams.