1. OGRPHY LiFePO4 battery with stable performance and great power provides up to 5000 cycles for 10-year service life.2. Compared to the same capacity lead acid battery lifepo4 battery has a 1/3 weight 1/5 charging time 2 times energy release and 8 times cycle life.3. Designed for RV boat(trolling motor fish finder) marine golf cart and off grid applications.4. High safety and stability: with built-in BMS protection from over-charge over-discharge over-load over-heating and short circuit. Lower than 3% self-discharging rate5. Eco-Friendly: Green energy with no toxic chemical material for environmental protection.6. Charging temperature 0℃-55℃ discharging temperature -20℃-60℃ the OGRPHY battery is capable of many extreme weather.