Your very welcome . Give the video a like and hit subscribe

Glad you liked it!

Give me a shout out in your videos . And I’ll subscribe to your channel 👍

Would love a spot welder for these kind of jobs

@@stevenharpervw I can do that I might do a short video this weekend I can give you a shout out on that

@@stevenharpervw here's a video I done recently there are links for the spot welders in the comments section kzfaq.info/get/bejne/Zsdke5SpzeClf3k.html

Yes took me by surprise but I think it just monitors temp. But only on the original batters the new ones don’t

Aliexpress for 18650 are about €2 but in saying that you do need the quality batteries that can handle fast discharge like when a drill or cordless angle grinder demands power straight away. But if it’s only 1 or 2 batteries cell required to bring the entire 18v battery back to life it’s well worth the time doing so

Thank you for the info . Don’t forget to like and subscribe

AliExpress is where I got mine for the other battery pack. But always read the reviews and don’t believe anything the sellers say

Yes you can put any 18650 cells in to these batteries but the C rating has to be the same, ie you can’t use laptop batteries

Open the battery and like I Did, test each cell should be between 3-4volts you will probably find one dead cell and you can just replace it like I did

@@stevenharpervw Awesome! The factory sent me a new battery but since I have this one just laying here, I figure I may was well take a shot at fixing it. Thanks!

Even just to take a shot at it and see which cell is bad

Oh I didn’t know there was a difference between one being 18A and the other being only 15A would if make any difference the fact that the rest of the battery pack is old, would the over all capacity, have also dropped ?

@@stevenharpervw Mixing different batteries into a series pack without individual monitoring (like all newer 18V packs have) is just asking for trouble. Having lower capacity might cause that cell to be over-discharged and wear out sooner. If it has higher capacity it might cause the other cells to discharge too much. This pack only monitors series voltage. Then when charging it might over-charge (reach >4.2 before the total pack voltage is anywhere near 21V)... and overcharging Lithium causes a lot of trouble.. The soldering might have already damaged it from the get-go. There is a good reason they are spot welded instead of soldered. There have been a few fires when charging these older batteries that lack individual monitoring and Bosch was forced to change their design. With previous tech Ni-MH and Ni-Cd batteries individual monitoring wasn't necessary because they would 'never' burst into flames like overcharged lithium cells do.

Where does it say the mAh on them ?

@@stevenharpervw Really? Where did you get that they have 3000mAh. Samsung has the inscriptions 13Q or 20R on its cells add two zeros to it then you have the capacity but first what you should do is find the datasheet

Interesting. Thanks for the info

@@stevenharpervwBy adding one 1300mAh battery to a 1500mAh group you’ll be either stressing that 1300mAh battery or, in case there’s a BMS, the capacity of the package will be lowered to that of the 1300mAh battery. It would be better to test the capacity of each individual cell (most 18650 chargers can do that) and then add a battery that best matches the other ones Also: that one battery at 3.8V might be on its way out too. If not, I’d highly recommend to charge that one individually to at least match the rest of the group. All the best!

@@Conservator. fantastic info thank you so much 👍👍👍👍👍

Thanks 😊