Li-Ion battery 12V 21Ah (3s7p)

The battery is designed for stable high-capacity output during repeated deep charge-discharge cycles in electrical systems with a constant voltage of 12V.


  • Rated voltage: 11.1V;
  • Rated capacity: 21Ah-23Ah;
  • Case form factor: AGM 7-9Ah;
  • Maximum charge voltage: 12.6V;
  • Maximum charge current: 5A;
  • Maximum discharge voltage: 8.25V;
  • Maximum discharge current: 20A;
  • Element Type: Li-Ion 18650;
  • Circuit diagram: 3S7P;
  • BMS type: 3S 40A passively balanced;
  • Additional connector for connecting the charger: 5.5x2.1;
  • Charge status indicator: yes;
  • Additional outputs: no;
  • Material: ABS plastic;
  • Size: 150x65x94 mm.;
  • Weight: 1045g.

Operating features:

  • When charging the battery, connect the charger connector to the battery first and then to the AC outlet;
  • After the battery is fully charged, turn off the AC power and then disconnect the battery.
  • If you first disconnect the battery pack from the charger during charging, especially when the charging current is high (red light), the charger can be easily damaged.
  • When the charger's LED indicator turns green, continue charging for 2-3 hours to balance the battery cells.
  • Please use the charger and battery in a dry place, avoid overheating and hypothermia.
  • Please try not to charge the battery immediately after the battery is depleted. Let it cool down.
  • Please do not charge the battery while it is being discharged. Otherwise, you risk damaging the battery.
  • Do not discharge the battery below the discharge voltage limit specified for the specific battery.
  • If you need to store the battery for a long time, leave the battery 40-50% charged.
  • Please do not use Li-Ion batteries in lead-acid UPS/Inverters without deep modification of the latter. Use a LiFePo4 battery and there will be little modification to the UPS/Inverters.
Battery specifications
Chassis form factor AGM 7Ah-9Ah
Rated capacity 21Ah-23Ah
Battery type Li-Ion 18650
Circuit diagram 3S7P
Nominal voltage 11.1V
Maximum charging voltage 12.6V
Maximum discharge voltage 8.25V
Maximum discharge current 20A
BMS type 3S 40A passively balanced
Additional connector for connecting the charger 5.5х2.1 mm
Charge state indicator LCD display
Additional outputs ABS plastic
Weight 1045 g

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Li-Ion rechargeable battery 12V 21Ah

  • Brand: MicroGIS
  • Product Code: Li-Ion 12V 21Ah (3s7p)
  • Weight: 1.05kg
  • Dimension: Д: 150.00mm  х  Ш: 65.00mm  x  В: 94.00mm
  • SKU: Li-Ion 12V 21Ah (3s7p)
  • Availability: In Stock
  • Already bought: 0 in
  • 137.69 €

View: 207

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