Timeusb 12V 100Ah Pro battery is the best lead acid replacement. Its 1280Wh energy capacity is 2 times that of lead-acid batteries, and its compact structure is 1/3 smaller than that of lead-acid batteries. EV LiFePO4 cells, 100% depth of discharge (DOD) and 10 years of service life, which is about 3.3 times the life of a lead-acid battery with the same lifespan of 3 years. 100% comprehensive protection 100A powerful BMS Self-developed provisions 100A BMS 5 comprehensive protection functions: overcharge protection, overdischarge protection, overcurrent protection, high temperature protection and short circuit protection Useful charging solutions Timeusb 12V 100Ah LiFePO4 battery supports charging with LiFePO4 battery charger (recommended) Charger Timeusb 14.6V 20A), solar panel with MPPT solar controller, generator with AC charger, and alternator with DC charger. Expandable solar system up to 20.48kW. Timeusb 12V batteries support up to 4P4R connection. 16 pieces of 12V 100Ah LiFePO4 batteries in 4P4R connection can form a 51.2V 400Ah battery system with a maximum capacity of 20.48kWh, suitable for solar systems, home storage systems, off-grid systems, etc. Supports a max. 16 batteries, 4 in parallel and 4 in series, allowing you to store a max. 20.48kWh of energy. Versatile power solution, various applications. This Timeusb 12V battery is a versatile power solution for a wide range of applications. Whether you're powering your home, RV, camping gear, trolling motor, or boat, the Timeusb 12V 100Ah LiFePO4 battery can provide reliable, continuous power. This compact battery is suitable for common applications such as RVs, camping, solar systems, home storage, marine applications, and more. Wide Operating Temperature Range: Timeusb LiFePO4 batteries support operation in both low- and high-temperature environments. The charging temperature range is 0°C to 50°C, the discharge temperature range is -20°C to 60°C, and the storage temperature range is -10°C to 50°C. With a robust modular design, it weighs only 10 kg, which is approximately one-third the size of a 12V 100Ah lead-acid battery. It measures 330 x 172 x 216 mm in length. Package Contents: 1 x 12V 100Ah LiFePO4 Battery, 2 M81 Screws, Warranty Card, 1 x User Manual. Charger is not included. The Timeusb 12.8V 100Ah Pro Lithium Battery is designed as a rechargeable battery, not as a starter battery. Specifications: BATTERY: Cell Type: Prismatic LiFePO4 Cells; Charge Cycles: 4000+; Nominal Voltage: 12.8V; Nominal Capacity: 100Ah; Energy: 1280Wh; Max. Expansion (Parallel & Series): 4P (12V 400Ah) / 4R (48V 100Ah) / 4P4R (48V 400Ah)Internal Resistance: ≤40mΩCertificates: CE / FCC / UL-1973 / ROHSBattery Technology: LiFePO4 (Lithium Iron Phosphate)BMSBMS: 100AMaximum Continuous Output Power: 1280WMax. Continuous Charging Current: 100AMax. Continuous discharge current: 100APeak discharge current: 400A @ 1 secondLOAD Charging method: CC / CVCharging voltage: 14.4 ± 0.2VRecommended charging current: 20A (0.2C)TEMPERATURE Charging temperature: 0 ℃ - 50 ℃ Discharging temperature: -20 ℃ - 60 ℃Storage temperature: -10 ℃ - 50 ℃ Pluggable terminals: M8Weight: 10kgSize: L330 x B172 x H216 mmShell material: Plastic (ABS)Protection class: IP65