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Can I mix batteries with different mAh?
If your using the AA battery tray mixing the batteries might be more of an issue, using AA rechargeable with a different mAh is ok, but using different voltages is where the problems could occur (akaline and rechargeable situation), the uneven voltage could cause problems for the individual cells causing them to leak …
Can I mix different 18650 batteries?
Re: DIY 18650 Pack: Can i mix cells? Yes, but ideally put the same mix in each parallel group.
Do mAh add up?
If you use 2 x 3.7V, 2000 mAh cells in parallel to drive a 3.7V nominal load, one cell can provide 2000 mA for one hour or 200 mA for 10 hours etc AND the other cell can do the same. So the mAh ratings add. If one cell has more mAh than the other, the mAh TEND to add when connected in parallel.
Can I use rechargeable batteries and regular batteries together?
Using batteries of different chemistries to power a product can cause damage to your device from electrolyte leakage and over-discharge of the lower capacity batteries. Basically it makes a mess and eats the battery contacts, potentially ruining your product. Don’t mix rechargeable and non-rechargeable.
How to connect 18650 18650 different capacity batteries?
You could then put these two parallel groups in series, to yield a slightly imbalanced 7.4V 2023 mAh pack. You should also aquire a 2S balance plug extension wire, cut the male plug off and connect the wires to each parallel group of cells in the pack.
How to connect old 18650 different capacity cells as a 2S2P pack?
How to connect old 18650 different capacity cells as a 2S2P pack? Recently I’ve opened up a laptop battery pack and got 6 18650 cells and two of them were 0V and the other four had 3.75V. I fully charged them with a Imax b6 charger and discharged them at 1.0A to 3V. I was thinking of building a 2S2P pack for my Arduino project.
Why do different types of batteries have the same voltage?
They can have different capacities on account of size or age, but the same chemistry (e.g. all flooded lead acid or all AGM). Before you start charging, the voltage across each of them is the same–even if one is fully charged and the others aren’t. Charge will flow from one battery to the other two until they’re balanced.
What happens when you take a battery out of charge range?
You’ll take it out of a safe (for longevity) state of charge range, without the voltage across the series batteries indicating that. When you charge the batteries, the reverse happens–the battery with lower capacity will be charged faster, and can be overcharged.