25.9V 20Ah Lithium-Ion Battery Pack (7S4P)

Shenzhen Ryder Electronics Co., Ltd. is one of the leading manufacturers and suppliers of 25.9v 20ah lithium-ion battery pack (7s4p) in China. Welcome to buy CE approved batteries in stock here and get free sample from our factory. All customized products are with high quality and low price.

Charge temperature range: 5°C to 45°C

Discharge temperature range: -20°C to 60°C

Storage: ≤1 year at -20°C to 23°C

Vibration resistant per mechanical standards
 

Q:What is the typical cycle life of Ryder's 25.9V 20Ah lithiumion battery pack?
A:The 25.9V 20Ah battery pack (model Li217007S4P) delivers ≥300 cycles at 80% of initial rated capacity under standard charge/discharge conditions (0.2C charge, 0.2C discharge at 25°C). Actual cycle life may vary depending on operating temperature, discharge current, and depth of discharge.

Q:What safety certifications does Ryder's battery pack hold?
A:Our battery packs undergo fullspectrum validation in ISOcertified laboratories. They comply with UN38.3 (transportation safety) and UL standards. Additional tests include environmental simulation (-40°C to +85°C), vibration resistance, overcharge/discharge protection, shortcircuit protection, and temperature protection. Multilayer protection (hardware + firmware) ensures zerodefect safety.

Q:How should I store the battery if not used for a long period?
A:To maximize shelf life, store the battery at 2040% state of charge in a cool, dry place (recommended 23±5°C, 60±15% humidity). Recharge every 3 months to prevent overdischarge. If any cell voltage drops below 3.2V for 24 hours, the BMS enters shutdown mode – the battery then requires a charger to wake up. Never store fully discharged or above 40°C.

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