While charging my Lipo's ready for my flying day on Thursday, I discovered one of my HRB 3s 2200mAh batteries was only charging up to 75%, yet the charger kept saying fully charged .
So I checked the cells and discovered one was low 3.72v
. I love those Lipo's too the best ones I have in my collection, then it occurred to me it was probably the battery which was in the Sea Otter crash.
I hate waste so decided to strip the battery pack down maybe I could salvage 2 cells and gain a 2s 2200mAh. I managed to split the cells easily and discovered it was the middle Cell that was damaged, I de-soldered the connections and checked the two good Cells where still okay.
Un-fortunately I didn't have any spare 2s JST balance connectors, so had to order some, they arrived today. I have now re-soldered the battery connections and fitted a 2s balanced plug and its working fine.
I don't plan to use it in a model that's not really a sensible idea, but it can be put to use. Its saved me scraping two perfectly good Cells and given me a test battery for checking model set-ups.