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- เผยแพร่เมื่อ 16 ม.ค. 2023
- Full re-pack of a Bosch 18v 4ah, 5ah or 6ah battery pack.
This type of pack requires spot welding and soldering to replace the cells.
The factory cells are Samsung 30q cells (in the 6ah pack) with a 3000mah capacity and 20a discharge rating. The replacement cells should not have a discharge rating of less than 20a - แนวปฏิบัติและการใช้ชีวิต
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Thanks, with your video I fixed a bad connection in my BAT620.
Glad the video helped!
Fantastic job. Well done
Oh I didn't notice the lil grinder in the last one. That's a good idea lol now I've got to get one 😅
Can you show any lights on why my battery do not make contact with the drill battery connection, when pushed into place ?
I have an identical one that flashes an LED on it and does not charge. The batteries are good. What is the problem?
Do you end up hanging onto the old batteries for minor replacement? For example if you come across 1 pack with the bottom corner with water damage. And you pop 1 spare in place of it. Or is it that usually you just repack and replace all cells?
I myself replace all cells but if someone want a me to do 1 cell (and provides it), I'll do that.
Hello I enjoyed watching your video! Did the same half a year ago. Both packs will not load full. Wenn i testet the cells. I found out that the charging process is only charging the first cells in series to 4.2 V the 4 cells behind are not charging. And staying at 3.7 V. Anybody any idea?
My other question did you find doubling up the nickel strips helped?
I've never compared single and double packs but I know that using doubled strips will reduce the heat when using the pack on high draw tools.
Hello. Is it possible to replace original cells, for example 1500mah 20a, with 3000mah 20a?
Is there some sort of protection on this battery from switching cells?
Yes it's possible to fit cells with a higher ah rating.
Hello boss . 1cell with MH ?
Hi, what thickness of nickel strip did you use?
Two layers of 0.12 or 0.15.to make a total of 0.24 or 0.30mm.
What type of cells were in the original battery?
Samsung 30q.
If you put 10 cells with 3000mah,how much amp the battery pack will rate?
10 cells will be 2 rows of 5 cells. Using 3000mah cells will give you a capacity of 6ah (6000mah).
@@spinnanz great! Thank you.
sir my Bosch 18 volt battery indicator not working 5ah lithium ion battery
I'd 1st check the button, that can become faulty with time.
these are not panasonic cells. The description in the store is confused. These cells have a low discharge current!
You are correct. They are LG chem cells, lg18650mh1.
@@spinnanz these are not cells for electrical machines. You will blow them out very quickly.You need high drein cell more then 15A discharge
@@kocetoMR this video is an instruction to replapce the cells only. I recommend using 20a related cells.
@@spinnanz What you say doesn't make sense also it's misleading.
So you show how to fix a battery pack by using wrong cells BUT this video is what??
@@billadmond9450 I make no recomndation in the video to use these particular cells, nor do I even say that they are.
At 8:10 it clearly states the specs of the original cells and the video description has the brand and model of the original cells in the pack.
If you made this video for learning purpose that's ok, but in the real life buying 10 brand cells (plus accessories) will cost near the same or even more than what you would spend by buying a new Bosch battery.
And now Bosch make the Pro Core one which uses the latest Samsung 21700 cells which make the pack smaller.
In my country an 18v 5ah bosch pack will cost me $190 for a 5ah. 10x 30q cells will cost me $137, so I can make a 6ah pack.
Thats a 27% saving and get a 20% larger battery.
@@spinnanz When you talk about numbers you need to be more specific but it's clear to me that you mention things like people chit chatting at the local market: what country you buy the battery from, what cells brands and where you buy them, how do you get 20% energy by using the same cell specification?
@@billadmond9450 I don't need to be specific at all. If you don't like the video go make a better one yourself.
My example above is using 30q cells, which have 20% more capacity than factory.
Are there any drill batteries (in your experience) that lock up the BMS when you remove the old cells ??
The Milwaukee one you recelled obviously didn't , but I've heard that Makita batteries BMS will stop working if voltage is removed during re-celling.
Thank you for a great video.
PS - you didn't show this Bosch charging after this re-cell.
I've had 2 Makita that were locked however when they became faulty (with the original cells inside) the owner tried at elast 3 times to get them to charge on the charger. I've heard this can cause the BMS to lock. A set of 4 after market BMS's are around $25 for the set.
I have repacked working but worn out Makita with no problems.
I couldn't show this Bosch charging as I don't have a Bosch charger however I waited until the owner confirmed with me that the battery had done a full charge/discharge before I posted the video up.
Hilti lock BMS after voltage drop… only what you can do is buy new one…