Bosch 10.8v/12v upgrade

[Screwdriver]

ive never seen one of those batterys go pop (seen a cr2032 go and that went well) but seen a few pics where they exploded so would be very carfull on soldering them

when buying a battery for the boash drill that only needs one battery i phoned a guy on ebay cheak the one i was buying was right he said no you need this one as batterys for power tools so say need a higher discharge rate the differance in price was £4.50 and the one i so say needed was £5.99 so just paid it dont know if any of this was true but he could have tryed to get me to buy one that was a 10er ( at thsi point i would have said dont worry but 1.50 extra not worried about )

Yes. You did the right thing. See above for details!

They look the same, they're all 18650 size, same voltage and even the same capacity (say 3000mAh) but the rate of discharge can vary dramatically. That's similar to say the spout on your watering can. A low rate would mean a small hole in the spout so that no matter how hard you tried, you can only pour a certain amount of water out. Same size can, same volume of water but with a bigger hole in the end, you can dump loads of water out in a hurry.

So with the "high drain" 15A battery I bought, it has a large 15A spout. It can dump 15A happily into your power tool to really give it some power. Some of them will even go to 70A for a short period of time. And time is the key. The 3000mAh rating is an average, 3 Amps in an hour. Do the same with a lower spec battery and the tool will struggle to pull all of the power it wants, the battery will overheat and it just won't last either.

I went for a UK based shop because there's so much fakery and misinformation out there (on eBay) you can't really be guided on price.

 

[eddie49]

Lidl have expanded their range of Parkside 10.8v ( "12v" ) light-duty cordless tools. The lineup now includes a multi-tool, a planer, an angle grinder, and even a mini SDS drill! Available from Sunday 26. May 2019.
The batteries are available separately. The 4AH version is £14.99, and so buying one of those would give you 6 x tool-rated 2000mAH 18650 cells at just £2.50 each.
https://www.lidl.co.uk/en/MiddleofLidl.htm?articleId=22522

 

[Screwdriver]

They are using them in series/parallel so you also have to halve the current drain rating. They will be cheap batteries and even I baulk at the idea. Interesting to see which Bosch/Dremel/B&D 12v tool that design might fit though. None at all would be my guess, they all seem to go to extraordinary measure to prevent battery pack sharing. The Dremel body design is specifically produced to prevent even modified Bosch packs fitting unless you remove the end cap.