HIPOWER is the manufacturer. have export LiFePo4 battery for 7 years. provides the energy storage solution Lifepo4 battery pack +charger + BMS certifications: ISO9001, CE, ROHS and UL. HIPOWER battery advantages: Deep cycling. No memory effect Lifespan 2000 times on 80%DOD（4-7 times of Lead-Acid battery） Small size. High energy density. Light weight(1/4 of Lead-Acid battery) Maintenance free. No explosion. No fire Good performance in low/high temperature (-20°C~+70°C) No toxicity, no heavy metal LEAD pollution HIPOWER products are widely used in energy storage such as UPS (uninterruptible power supply), solar/ wind power plant, electric vehicles etc. Beside,we also produce electric bikes,electric mini car, lithium UPS. electric bikes W series aluminum alloy frame, LiFePO4 battery 48V Max. speed 25 km/h. Running distance 45km C series steel frame X series steel frame scooters. alice9988@hotmail.com