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Molicel INR21700-P42A 4200mAh - 45A button top

Additional Information

EAN / GTIN  7417940528939
Weight - g  72
Brand  Molicel
Model  INR-21700-P42A
Size  21700
Battery chemistry  Li-ion
Voltage  3.6V
Min. capacity - mAh 3,950.00
Typ. capacity - mAh 4,000.00
Battery version  Button top
Discharge current - A 45.00
Circuit protection  Unprotected
Height - mm 71.70
Diameter - mm 21.20

Availability: In stock

€7.49 (€ 6,19 without VAT)



Capacity: 4200mAh
Rated Voltage 3.6V - 3.7V
Charging cycle termination voltage 4.20V ± 0.05V
max discharge current: 45A
Do not discharge deeper than 2.5V
Plus pool: Flat top
Chemistry: Li-ion
Protection circuit: Without
Diameter: 21.2mm
Height: 71.7mm
Weight: 72g

Additional Information




Customer Reviews

Not as powerful as I expected. Review by Pontus
Just tried to use those cells as an alternative to LiPo pouch cells. My application is a 3m aerobatic RC-plane.
Pack of 12s5p (20 Ah 43,2 V).
I had calculated a burst power (10 seconds) of some 220 A at 40 to 41 V under load. That’s just 11 C. Quite disappointed to read only 175 Amps at 38 V at about 85% SOC. Only 6,6 kW output from a 4,2 kg battery. And very rapid heating of the pack too. By calculation, I find the cell iR to be in the region of at least 20 mOhm. Much worse than expected. Typical for a LiPo cell of similar weight is between 4 to 7 mOhm. I put 3 stars as I think those cells are still good for less peak-power requirements. (Posted on 09-07-23)
21700 Flat top Review by Edwin
Perfect ... Maar niet altijd eenvoudig te bestellen . (Posted on 19-04-22)

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Take care

  • Li-ion batteries can be dangerous when used wrong, short circuit or wrong usage can lead to fire or an explosion
  • Do not put the battery in a charger or equipment with wrong terminals connected
  • Never short cut the battery. Take care you don’t short cut it accidentally, do not put it in your pocked together with bunch of keys
  • Do not disassemble or deform the battery. Dispose it if the battery is deformed
  • Do not immerse in water
  • Avoid excessive physical shock or vibration
  • Do not expose to, dispose of the battery in fire
  • Keep out of the reach of children
  • Never use a modified or damaged charger
  • Do not leave battery in charger over 12 hours
  • Store the battery in a cool, dry and well-ventilated area
  • Dispose of in accordance with local regulations
  • Do not solder on these cells