Electronic – What are the 8 wires on this rechargeable lithium-ion battery

batteriesbattery-charginglithium ion

I am trying to replace a rechargeable lithium ion battery with one that has a longer lifespan when charged. The one I have has 8 wires, but every one I find has 2. It has 3 red, 3 black, 1 yellow, and 1 white.

3.7V 2200mAh rechargeable Lithium ion battery (8 wires)

As you can see:
Rating: 3.7V 2200mAh

Can I replace it with something like this 6000mAh one, from SparkFun?
https://www.sparkfun.com/products/8484

Thanks, guys!

Best Answer

From the color code of the wires it's obvious that you have 3x B- and 3x B+ on the sides. The schematic in the datasheet suggests that the two wires in the middle are P- and NTC, for temperature sensing.

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I don't speak any Chinese, so you can only trust my statement that much.

Regarding replacement batteries, if your system has only two wires, it's more or less safe to take a battery with extra connections (like temperature sensors) and simply ignore them. However, if your system expects a battery with temperature sensing, connecting a battery with only two wires is not recommended, and may be impossible: many systems won't charge a battery if they don't get a reasonable signal on the sensing inputs.

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