# How much current to charge 4S2P LiIon? [on hold]

I have a 4S2P Lithium-ion battery for my quadcopter. I'm charging it with the Imax B6. I would like to ask what would be the suggested charging current for the battery pack with the 4S2P setup? Thanks!

## put on hold as off-topic by Chris Stratton, Nick Alexeev♦May 16 at 5:23

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• Some value in the range specified on the battery's datasheet, that is also supported by the charger. Within that range, make your choice based on how fast you want to charge, and how long you want the batteries to last (slower charging increases their life). Since you haven't linked any relevant data, the rest is up to you. – Brian Drummond Sep 9 '17 at 12:52
• Each cell have 2600mah capacity and the charger has maximum 5A of charging. – Dave Benemerito Sep 9 '17 at 12:57
• That doesn't tell you the acceptable charge rates for the cell. You need the supplier's datasheet for that. If they don't have one, the cells are probably junk anyway. – Brian Drummond Sep 9 '17 at 13:03
• "Each cell have 2600mah capacity" - but the battery configuration is 2P, so does that mean its capacity is 5200mAh? And is it really Li-ion (cylindrical cells in metal cases), or actually Lithium-Polymer (rectangular battery with plastic wrapping)? If Lipoly, what is its 'C' rating? – Bruce Abbott Sep 9 '17 at 13:15
• The C rate is the multiplier for 1 hr charge/discharge rate of the battery Ah capacity. so a charge current rises with lower battery ESR and the C ratings then rise accordingly. – Sunnyskyguy EE75 Jan 15 at 0:17