52V 21Ah Lithium-Ion Triangle Battery Pack 50A BMS

Power your e-bike build with this premium 52V 21Ah lithium-ion battery pack, built with genuine LG MJ1 18650 cells in a 14S6P configuration. Delivering roughly 1,092Wh of capacity, this pack is engineered for reliable range and strong sustained power on both hub motor and mid-drive e-bike conversion builds. A high-quality 50A continuous BMS with separate charge and discharge ports keeps everything safe over-charge, over-discharge, over-current, and short-circuit protection are all built in. The pack is wired with heavy-duty 10AWG output leads for minimal voltage drop under load. Plug Type: XT-90 Female Full Specifications Model LPY-P101 Nominal Voltage 52V (14S Li-ion configuration) Nominal Capacity 21Ah (min 20.4Ah) Watt Hours ≈ 1,092Wh Cell Type LG MJ1 18650 3.6V 3500mAh (Li-NiCoMn) Configuration 14S × 6P Standard Charge 58.8V CC/CV (5A max) End-of-Charge Current 0.02C Charge Time ≈ 7.5 hours (with 3A charger) Max Continuous Discharge Current 50A Over-Current Protection ≈ 150A (± 23A) Cycle Life ≥ 800 cycles (@ ≥ 80% capacity) BMS Protection Over-Charge, Over-Discharge, Over-Current, Short Circuit BMS Type 14S 50A, separate charge / discharge ports Over-Charge Protection (Cell) 4.25V ± 25mV Over-Charge Protection (Pack) 59.5V Over-Discharge Protection (Cell) 2.7V ± 80mV Over-Discharge Protection (Pack) 37.8V Short Circuit Protection Yes, auto-resumable Output Wiring 10AWG leads Dimensions 365 × 85 × 240 mm (14.4 × 3.3 × 9.4 in) Weight ≈ 6.0 kg (13.2 lbs) Operating Temperature Charge: 0–45°C / Discharge: −10–60°C Storage Temperature 1 month: −20–45°C / 3 months: −20–45°C / 1 year: −20–20°C Safety & Handling Use only Li-ion 58.8V CC/CV chargers (supplied) Do not short, reverse polarity, or charge below 0°C Store cool and dry at ≈ 50% state of charge if unused for more than 3 months Avoid water immersion and direct heat sources Battery Care & Charging Store the battery in a clean, dry, ventilated, dark environment. When not in use, keep it at half charge and recharge every 3 to 6 months. During charging, the charger's indicator light shows red; once fully charged, it turns green. To prolong battery life, recharge before it's completely dead, and after every 30 charges, allow a full discharge before recharging. Warranty 12-month warranty Product quality guaranteed by PAIC insurance