Hello there.
I want to connect 3 batteries in series to create a 13s battery.
I have 2 batteries of 5s, 5Ah, and 1 battery 3s 4Ah.
What will be a more wise connection? The 3s between the 5s batteries? Or in one of the sides?
Thank you.
Donât do it.
Sell or use the 3S lipo for a welder battery.
Put the two 5S batteries in series for a 10S battery.
For series connections, you need the same cells. Donât mix and match. Same make and model and same age & history, is best.
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What can it cause?
A fire.
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Alright,
Thank you very muchâşď¸ I really wanted to have more opinions before I blow my eyebrows away, honestly, I did have some concerns with that action.
But although, I saw many people that doing it with no any issues, so Iâm a bit stuck right now.
There are lots of tiny details that are super important. Get all the details right and itâs semi-safe. Get even one of them wrong and it can be super dangerous.
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This sounds fine as long as theyâre the same lipo with the same capacity. I.e 2 5s 5ah turnigy graphenes and 1 3s 5ah turnigy graphene lipo.
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They arenât, two are 5Ah and one is 4Ah
Iâm clarifying a safe use case here
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They need to be same capacity, same age, same history & same type (brand and type). The S count doesnât matter as @Evwan said.
Thatâs for series connections.
For parallel-only connections, you can mix and match. Esk8 batteries are almost never parallel only connections. But if you were to make a 1S15P battery, the 15 cells could be mixed as long as they are the same voltage cells. But not if you then put that in series with other cells, then it becomes not okay.
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This misleads me a bit.
Do you mean to say I can combine an energy cell and a power cell in the same p-group as long as the voltage was the same and all series groups contain the same cells as eachother?
Thatâs not ideal, no, unless you kept current flow really low. I wouldnât do that.
As in under the current limit of the lowest current rated cell as if all cells were of that lowest current rating?