Product description
AKY2183 is a 21700 Li-Ion battery cell with long service life and low self-discharge. Suitable for building or repairing battery packs, flashlights, etc. Li-Ion cell without protection circuit. Supplied as a 1-pack. NOTE! For necessary protection and best performance, read IMPORTANT INFORMATION below.
Specifications:
- Nominal capacity: 5000 mAh (minimum 4950 mAh)
- Nominal voltage: 3.6 V
- Maximum charge voltage: 4.2 V
- End-of-discharge voltage: 2.5 V (cutoff voltage)
- Standard charge: 0.5C – 2500 mA
- Fast charge: 1C – 5000 mA
- Maximum discharge current: 15 A
- Continuous discharge current: 10 A (temperature monitored)
- Weight: 73 g
- Packaging: 1 pc
- Dimensions: Height 70.95 mm x Ø21.65 mm
- Operating temperature, charging: 0 to 45 °C
- Operating temperature, discharging: -20 to 60 °C
- Terminals: Flat top battery terminals
- Chemistry: LiNiCoAlO2
- Model: AKY2183
- Battery type: Li-Ion INR21700-50M
IMPORTANT INFORMATION:
- The battery does not include a built-in protection circuit and must therefore be used together with a monitoring protection circuit (PCM) or a BMS (Battery Management System).
- The protection circuit protects the cells against overcharge, overheating, overcurrent, deep discharge, and short circuit. If any parameter goes outside the acceptable range, the BMS protects the system by shutting down the process or issuing an alarm.
- Incorrect charging or discharging can lead to thermal runaway, which is the cause of explosive events and fires in battery cells. A protection circuit is essential for safe use.
- By charging under controlled conditions, harmful wear is limited, allowing optimal cell performance to be maintained over a long period, even after many charge cycles.
Safety instructions:
- Never charge or discharge without a protection circuit (PCM / BMS). Maximum charge voltage is 4.2 V.
- Never deep-discharge – do not allow the cell voltage to drop below 2.5 V.
- Do not discharge the cell at a higher current (A) than specified.
- Do not charge the cell at a higher current (A) than specified below.
- Do not short-circuit the cell.
- Do not mix cells of different types, brands, or different states of use in a battery pack.
- Use the cell within the temperature limits specified by the manufacturer.
- Do not use cells with physical or functional damage – dispose of them for recycling.
- Do not allow contact with water or other liquids.
- Never reverse the polarity of the cell.
- Never solder directly onto the cell terminals. Use a designated battery welder for nickel strips or use battery holders.
- Do not expose the battery to strong mechanical shocks.
- Do not immerse the cell in water or seawater and never allow it to come into contact with moisture or liquids.
- Do not disassemble or modify the cell.
- Do not use or store the battery in direct sunlight or in a heated car exposed to sunlight.
- Keep the battery out of reach of children.
- Do not handle or store the cell together with metal objects that may cause a short circuit.
