Hi Guys, I bought my son an Rc truck for Christmas. £38.
the battery pack that is supplied is a 9.6v 3 cell pack (about 2/3 as long as an 18650)
I have 18 18650’s spare and was wondering if I could use them as mini battery packs in 2’s? I know the voltage is lower, but after watching a few videos on the net it seems people are using 2/3 size 7.2v packs with no loss in power, but gains in runtime. I forgot - the batteries are INR18650-13p type, which I believe are rated at 10a, but go to around 13a draw.
So I was thinking…… I could use some of these below? and make a few 8.4v packs up that I could charge in my D4 loose, rather than buy another car charger ( the one supplied is NOT good)
Any advice is appreciated, thank you !
Those battery holders have pretty high resistances and those RC cars pull a lot of current.
With 2S you would loose a lot of power, you loose 1/3 of energy in the pack and voltage
If you have good soldering gear solder some AWG18 wires on the batteries and wire em 3S, thin AWG22 wires for balance charger
Wrap it up with tape and see if you can get the connectors for the car and charger and solder it
Usually the provided chargers with those cars are crap
The car is so cool
It says Li-ion on the battery pack but I’m wondering if it’s really Li-Fe. For RC battery packs they are usually rated 11.1v for a 3s pack, this one is rated 9.6v. That might explain why others have tried it with 2s and got minimal lose of power. As Lexel mentioned RC’s tend to be amp hungry with constant bursts of power though this car doesn’t look high grade so I don’t expect it will be running the electronics too hard. Though I would still upgrade the wires if using those cell carriers.