PowerBook 3400 Battery Rebuild?

[AlpineRaven]

Good evening all, 

Can PowerBook 3400 Batteries be rebuilt, I've got 9 Batteries that will not charge, any instructions or information regarding this?

If I am able to recell them and get them working again - can that be done?
Cheers

AP

 

[AlpineRaven]

Anyone?
Cheers

AP

 

[admford]

The PowerBook 3400c uses four 3.7v 3300mAh lithium ion batteries connected in series (voltage regulated to 14.4v). Battery size is 26650.

you can use four 26650 sized flat top lithium ion batteries as a replacement (3.6v rated). Interestingly enough, they’re the same type used in many vapes. But be careful regarding brand, as the effective Ah might not match what’s written on the battery case. You’d also need to do some soldering though.

 

[admford]

Ah, I’d suggest using INR or IMR 26650 batteries as they’d have more charging cycles before degrading.

https://www.batteryequivalents.com/26650-battery-dimensions-chargers-and-flashlights.html