【ミニ四駆】Tamiya Mini 4WD Testing: How To Pair Batteries 

If you only consider batteries as a brief power supply, P = V * I -> I = V / R. The energy compsumption is measured in mA, so you need to supply the maximum current the engine absorbs, but you could only reach that point provided that your power supply was an ideal one (3V - 0Ω). Since races are short, the matter of capacity disappears. This explanation is based on the Ohm law, not in Mini4WD experience.

He is asking the question based on Mini-Z experience where long runtimes are necessary. It makes sense to pair them that way, but I honestly I am unfamiliar in pairing batteries based on measured capacity. For Mini-Z it may be wise to use both capacity and internal resistance to pair batteries. Lower IR can provide a more consistent current to the ESC which is good in longer runtime races. This may prove to be even more difficult since you need to group 4 AAA batteries instead of just 2 AA.

No I haven't.

Do you have it plugged into a power bank when that happens?

No it's directly connected to the socket

Hmm, not sure. The only time I get errors is when I'm plugged up to my power bank and the power bank is low power.

I would stick to Rechargeable batteries. Their performance is more predictable and cheaper to use over a long period of time compared to constantly buying replacement alkalines.

@@Z3NBluster The problem is the majority of the Ni-MH batteries supply 1,2V and they aren't recommended by Tamiya.

@@TurboYonki Tamiya makes NIMh batteries. Use those.

@@Z3NBluster Ok, thank you.

Yeah. Everything is important.

You're welcome.

It's the SkyRC NC2600 app on the Android marketplace.

Sure. But I recommend that you try and use Tamiya Neo Champs for the lightweight batteries and Eneloops 1900mah for the slightly heavier but higher capacity batteries.

@@Z3NBluster so basically neochamps is lighter than pink fujitsu? I always thought the opposite