Want to charge lithium battery pack with USB-C

Thread Starter

memphismachinist

Joined Oct 21, 2015
1
I have built a prototype battery pack for my Pentax 645 film camera. From 1985. The most common failure on these cameras is the battery packs / holders. They hold 6AA batteries in series, 9v, at whatever the mAh is for a given battery. I can easily replace the batteries and move on. But I would rather charge a bundle of batteries to 9v. How can I tackle this?
 

Audioguru again

Joined Oct 21, 2019
3,677
Two cell lithium batteries for models are 8.4V when fully charged and are about 7.4V when half-charged. The batteries and chargers of all sizes of mAh are sold inexpensively at local hobby stores.
 
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