sharon whipple

Hi all, sorry for the weird question (its for a small electric project)
Is it possible to charge this battery using the Turnigy accucel 6:



Thank you!

Walt Thyng

My Feedback: (9)

Don't see why not. You will have to make your own connector and I can't see any provision for balancing. Perhaps it is a single cell. Charge rate would be 1.3 amps max (I would use 1.0).
Walt

sharon whipple

Thank you Walt
If it is a single cell why would it have 4 terminals?
The battery have 4 terminals, 2 of them marked as (+) and (-) they will be connected to the accucel power terminal,
The remaining 2 terminal connectors are probably for balancing?
Any idea how to connect them to the accucel balancing port?

soarhead-RCU

If it is a single cell it would not need balancing. Nothing to balance it to. The other two contacts could be some type of safety check for heat or rate of charge or something like that. Possibly parrelel out put, one is the charger port and one for the output for the device it powers. I googled it up but no one has any specs as to if it is a single cell or 2 in parrellel. At the price that they are asking for them it cant be too complicated internally I wouldnt think though. As stated above I would try it at no more than 1C, maybe less and see how it goes.

Good Luck
Bob

sharon whipple

OK, I took the cover of an old battery out , It seems like a single cell,
I uploaded front and back images of the battery entrails can you confirm that its single cell by the images?

Thank you for your help!

soarhead-RCU

Looks like 1 cell to me. Just a guess but I would say that the strip below the cell in the picture is part of a safety sensor device. Probably a temperature sensor that will open up the circuit in case of too much heat because of a overload in discharge or overcharge problem. Too much heat is a LiIons enemy and will cause them to swell and burst or even burst into flames I have heard. Also Lithium type batteries do not like to be drawn down too far in voltage so it could be a circuit that opens up if the voltage goes below the safe value. Dont know what you are planning to use the pack for but use caution as to the amount of amps drawn from the battery and how far you discharge the battery. Most of these type of battereis are made for a small discharge current like maybe 1 or 2C max and I wouldnt go below 3.5v just to be on the safe side. Accually the 3.7v nominal volts is almost dead anyway, maybe 10-15% capacity left in them.


Good Luck
Bob

sharon whipple

I will be cautious
Thank you very much!