Hi, Bosch S5 for me, I’ve had them in the 3200 and now the GS.
Are you able to put a battery tester on to check first.
Where are you, I’m in Kingston, Surrey so could use mine if you are nearby.
Tanya on eBay deliver quickly and are reasonably priced. My last battery came from Amazon only because of the price so check on prices.
Might be a question about a charger rather than the battery ? I always use Tanya now as a lot of choice and good prices normally.
Regarding chargers there are so many but a smart charger isn’t expensive nowadays . I have two Smart by RING 8 amp and the other 4amp and one Halfords Smart 4Amp come in at about 30-50 pnds.