please buy from:
https://www.us.sokbattery.com
7 year warranty and maintenance free with a 4000-8000 cycles life span.
Detachable cover with replaceable BMS and cells.
Connect in series for 24, 36 or 48 volt (maximum) battery bank or connect in parallel for larger capacity.
Built-in smart Battery Management System (BMS).
Low temperature charging cut-off.
High temperature charging or discharging cut-off.
Over charging and discharging protection.
Over current and short circuit protection.
Battery cells auto balance.
Max charge current: 50A
Max discharge current: 100A
Please note for connecting in series: If you are going to connect the batteries in series they need to be at the same State Of Charge (SOC) before they are connected.