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- Street Guardian UK / EU / EEA Distributor
Tiesfong B40 / A118 / AE-CC30 uses 300mAh 3.7V Li-Po battery Model: FT402535P 402535P 402535
![Tiesfong B40 Battery.jpg Tiesfong B40 Battery.jpg](https://dashcamtalk.com/forum/data/attachments/5/5203-37534de28f93999124a2f01eecbe5ad3.jpg?hash=N1NN4o-TmZ)
I have also tested bigger capacity battery and it fits inside: 3.7V 450mAh Li-Po. Model :403040.
![b1.jpg b1.jpg](https://dashcamtalk.com/forum/data/attachments/5/5197-cdaba6af751b53ddba3a2d67cc41fb74.jpg?hash=zaumr3UbU9)
![b2.jpg b2.jpg](https://dashcamtalk.com/forum/data/attachments/5/5198-b93f6e9334004a8bbbcc53104fe20c2d.jpg?hash=uT9ukzQASo)
![b3.jpg b3.jpg](https://dashcamtalk.com/forum/data/attachments/5/5202-84f00f4ac5a287fbe5f099a782b405c0.jpg?hash=hPAPSsWih_)
Tiesfong B40 / A118 / AE-CC30 battery Model 402535 has 3-wire chip. When you replacing to other battery which has 2 wire chip, you need to replace it by using a 3-wire chip from old battery and solder it to a new battery.
![b4.jpg b4.jpg](https://dashcamtalk.com/forum/data/attachments/5/5201-3b271098aa71f9741f5928474bf80b3c.jpg?hash=OycQmKpx-X)
![Tiesfong B40 Battery.jpg Tiesfong B40 Battery.jpg](https://dashcamtalk.com/forum/data/attachments/5/5203-37534de28f93999124a2f01eecbe5ad3.jpg?hash=N1NN4o-TmZ)
I have also tested bigger capacity battery and it fits inside: 3.7V 450mAh Li-Po. Model :403040.
![b1.jpg b1.jpg](https://dashcamtalk.com/forum/data/attachments/5/5197-cdaba6af751b53ddba3a2d67cc41fb74.jpg?hash=zaumr3UbU9)
![b2.jpg b2.jpg](https://dashcamtalk.com/forum/data/attachments/5/5198-b93f6e9334004a8bbbcc53104fe20c2d.jpg?hash=uT9ukzQASo)
![b3.jpg b3.jpg](https://dashcamtalk.com/forum/data/attachments/5/5202-84f00f4ac5a287fbe5f099a782b405c0.jpg?hash=hPAPSsWih_)
Tiesfong B40 / A118 / AE-CC30 battery Model 402535 has 3-wire chip. When you replacing to other battery which has 2 wire chip, you need to replace it by using a 3-wire chip from old battery and solder it to a new battery.
![b4.jpg b4.jpg](https://dashcamtalk.com/forum/data/attachments/5/5201-3b271098aa71f9741f5928474bf80b3c.jpg?hash=OycQmKpx-X)
Last edited: