Thanks Jupps. I have seen that site before and the author
(who frequents tis forum
) was also very helpful to me when I attempted to rebuild some Intermec 6651 battery packs. Unfortunately those batteries are a little more complicated than the NEC ones since there are three li-ion batteries with twisted tabs as opposed to two in the MP batteries.
I would consider rebuilding a MP battery no problem if only I could find a source for used/dead batteries here in the UK. I've found some being offered from sellers on eBay in the US but their shipping cost is too high
At this point I'm not prepared to take apart my existing battery because I depend on my MP790 for daily tasks and if something went wrong with the rebuild.....
Still seeking a supplier or any suggestions