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A capacitor-powered car I saw on PDD—just right for kids to play with. Since it didn’t come with a charger, I decided to make one myself.
There was also a black version, which looked nicer, but it was sold out when I placed the order. Two for 9.9 yuan.
BOM:
7-number battery spring contacts × 2
3.7V charging module × 1
Several lengths of wire and one 3.7V lithium battery



Simplified installation pictures:
1. Insert the spring contacts for the 7-number battery

2. Solder the charger and battery together

3. Solder the spring contacts in place

4. Secure with hot-melt adhesive


Completion:

Bill of materials
- NameQuantityNotes
- 13.7v锂电池一个1
- 23.7v充电模块*11
- 37号电池弹簧片*22
Originality of the Model
The author declares that this work is their personally original model
This model is licensed under the following terms:
Credit must be given to the creator
Models(1)
电容车充电器_2.3mfDesigner2.01 MB
2026-03-30





