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Dec 14, 2019, 09:30 AM
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Upgrade chinese rc car battery


This is a first experiment I am upgrading my son RC car, using 18650 Li-ion battery cells from an old power bank.

I build a 2s2p battery pack with BMS, this pack voltage is 7.4v and 4000mAh using 4 2000mAh cells, max voltage: 8.4v.

Before the upgrade, this RC car using 4*1.2v 700mAh ni-cd cell is very weak. My son only plays for around 5 minutes. And after, he can play above one hour.

You can watch here
Chinese RC car Battery Upgrade experiment (18 min 37 sec)


I think i will upgrade new esc and transmit system to control this cheap rc car speed
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