Product Overview
FM76‑21 lightweight power battery adopts genuine CORNEX (Chuneng) Grade‑A LiFePO4 cylindrical cells, assembled in 24‑series configuration with nominal voltage 76.8V. Designed for mid‑power electric mopeds, commuter scooters and light‑delivery two‑wheelers. Built‑in smart BMS with Bluetooth‑APP monitoring function. Full‑set safety protections prevent over‑charge, over‑discharge, over‑current, short‑circuit and thermal risk. Plug‑and‑play installation without vehicle modification. Compact size & moderate weight, ideal choice for daily city commuting.
Key Features
- ✅ Original CORNEX (Chuneng) A‑grade LiFePO4 cylindrical cells, 24S1P configuration, nominal 76.8V1688阿…
- ✅ Integrated smart BMS with multi‑layer safety protection
- ✅ Bluetooth & Mobile APP: real‑time monitor individual cell voltage, pack current, temperature, SOC & SOH
- ✅ Reliable continuous discharge output, supports acceleration and gentle hill‑climbing
- ✅ Plug‑and‑play, direct replacement for original scooter battery pack
- ✅ Long cycle life＞2000 cycles @80% DOD
- ✅ Wide temperature adaptability for global market operation
| Item | Parameter |
|---|---|
| Model | FM76‑21 |
| Nominal Voltage | 76.8V |
| Nominal Capacity | 21Ah |
| Rated Energy | 1612.8Wh |
| Cell Brand & Type | CORNEX (Chuneng) LiFePO4 Cylindrical Cell |
| Cell Configuration | 24S1P |
| Full‑charge Cut‑off Voltage | 87.6V |
| Discharge Cut‑off Voltage | 60.0V |
| Standard Charge Current | 7A |
| Recommended Charger | 87.6V 7A LiFePO4 dedicated charger |
| Continuous Discharge Current | 25A |
| Peak Discharge Current | 50A |
| Max DOD | 90% |
| Cycle Life | ＞2000 cycles (@80% DOD) |
| Communication | Bluetooth + Mobile APP |
| Ingress Protection | IP20 |
| Discharge Temperature | -20℃ ~ +55℃ |
| Charge Temperature | 0℃ ~ +55℃ |
| Storage Temperature | -20℃ ~ +45℃ |
| Operating Humidity | 5%‑85% RH @25℃, non‑condensing |
| Installation | Plug‑and‑play, fit standard moped battery compartment |
| Net Weight | 14.3 kg |
| Dimension (L×W×H) | 345 × 175 ×170 mm |
| Warranty | 2 Years |
Package Includes
- 1 × FM76‑21 76.8V 21Ah Battery Pack
- Power adapter
- User manual
Note: Charger sold separately. Must use 87.6V LiFePO4 special charger. Lead‑acid charger is strictly prohibited.
Safety Warnings
- Only use dedicated LiFePO4 CC‑CV charger. Never use lead‑acid charger.
- Do not puncture, squeeze, disassemble or submerge battery. IP20 rating; avoid rain and water soaking.
- Do not charge under 0℃, low‑temperature charging will damage LiFePO4 cells.
- For long‑time storage keep SOC at 40‑60%, perform monthly supplementary charging.
- Match your scooter controller current limit, do not exceed battery peak discharge rating.
