Lithium battery pack can be customized according to customer requirements. Please contact our customer service.Original 24 V 30Ah battery pack 250W 350W 7s3p wheelchair hanging bag lithium battery + 29.4v 2a chargerApplicable motor power of battery: 250W 350W 450W 500WRated voltage: 29.4VBattery capacity: 30AhBattery size: 130*68*58mmWeight: about 1.2kgInput: 5.5 * 2.1 patch cordIntelligent BMS: temperature abnormal / short circuit / under voltage automatic sleep / over current / double overcharge / double over discharge protectionCharging current: 2ACC / CV: charging modeCharging cut-off voltage: 29.4VDischarge cut-off voltage: 24VDischarge temperature: - 20 to 65 CCharging temperature: 0 to 65 CCycle life: capacity 80% after 800 cycles. of lithium battery:1. The charging standard of 25.2v lithium ion battery charger must be used.2 no discharge. The voltage of single battery should not be lower than 2.5V.3. It is strictly forbidden to dismantle the battery, otherwise it will cause short circuit of the battery and cause fire.Battery requirements:1: you LI-ION battery chargers; DC DC;2: charging voltage: 29.4 v3: Charging current: 4 or lessBatteries discharge requirements:1: Out of 18 lines, 150 mm long, red and black2: results in line 2.1 socket, 150 mm long3: Maximum instantaneous current: 604: The maximum operating current: 455: The product built-in rechargeable battery