bilabonics
1 mW
- Joined
- Sep 2, 2022
- Messages
- 19
Hi All
I am based in the UK.
I had set DeWalt tools/batteries 4/5 years ago and now the batteries are starting to die, voltage is dropping way below 17/16v on the pack, i good one is over 22v (from memory may be more/less but all my good 4Ah were of the same higher voltage.
I have tried 'jump starting' on by putting a good one in parallel for 30 seconds to give it some charge so the charger recognises it, charges for a few mins, once i put in drill it last 5 seconds and battery voltage has dropped again.
I have not opened the battery up yet but think they use LG cells (perhaps Samsung).
So i am thinking of purchasing a over £50 of 18650's and repairing them as each one starts to die....
I've seen batteries here but prices in Euro -
https://eu.nkon.nl/rechargeable/li-ion/18650-size/sort-by/price/sort-direction/asc.html
And here BUT it seems to be cheaper to purchase a genuine Dewalt 18v/4Ah ready made!
https://www.nubattery.co.uk/18650-flat-top-batteries?sort=price_asc&count=9
Also i did consider used 'A Rated' cells but don't think the C rating/output is enough and not worth the hassle tbh.
Also looking at this spot welder, i want something decent as in the future ui want to build a an elec bike battery.
https://www.ebay.co.uk/itm/185595270197?_trkparms=amclksrc%3DITM%26aid%3D777008%26algo%3DPERSONAL.TOPIC%26ao%3D1%26asc%3D243420%26meid%3D5e713670d53d4d2a891a0d32058e7c90%26pid%3D101286%26rk%3D1%26rkt%3D1%26mehot%3Dag%26itm%3D185595270197%26pmt%3D1%26noa%3D1%26pg%3D2380057%26algv%3DWatchlistVariantWithMLRV5%26brand%3DUnbranded&_trksid=p2380057.c101286.m47999&_trkparms=pageci%3Acf2ff2ac-63e5-11ed-a97c-ce9c64ba9e41%7Cparentrq%3A74d4e15e1840a60c1270bd79fffbe0bc%7Ciid%3A1
Plus i will need a charger/discharger to measure battery capacity i presume?
Anyone help me on my journey please!
Thanks
I am based in the UK.
I had set DeWalt tools/batteries 4/5 years ago and now the batteries are starting to die, voltage is dropping way below 17/16v on the pack, i good one is over 22v (from memory may be more/less but all my good 4Ah were of the same higher voltage.
I have tried 'jump starting' on by putting a good one in parallel for 30 seconds to give it some charge so the charger recognises it, charges for a few mins, once i put in drill it last 5 seconds and battery voltage has dropped again.
I have not opened the battery up yet but think they use LG cells (perhaps Samsung).
So i am thinking of purchasing a over £50 of 18650's and repairing them as each one starts to die....
I've seen batteries here but prices in Euro -
https://eu.nkon.nl/rechargeable/li-ion/18650-size/sort-by/price/sort-direction/asc.html
And here BUT it seems to be cheaper to purchase a genuine Dewalt 18v/4Ah ready made!
https://www.nubattery.co.uk/18650-flat-top-batteries?sort=price_asc&count=9
Also i did consider used 'A Rated' cells but don't think the C rating/output is enough and not worth the hassle tbh.
Also looking at this spot welder, i want something decent as in the future ui want to build a an elec bike battery.
https://www.ebay.co.uk/itm/185595270197?_trkparms=amclksrc%3DITM%26aid%3D777008%26algo%3DPERSONAL.TOPIC%26ao%3D1%26asc%3D243420%26meid%3D5e713670d53d4d2a891a0d32058e7c90%26pid%3D101286%26rk%3D1%26rkt%3D1%26mehot%3Dag%26itm%3D185595270197%26pmt%3D1%26noa%3D1%26pg%3D2380057%26algv%3DWatchlistVariantWithMLRV5%26brand%3DUnbranded&_trksid=p2380057.c101286.m47999&_trkparms=pageci%3Acf2ff2ac-63e5-11ed-a97c-ce9c64ba9e41%7Cparentrq%3A74d4e15e1840a60c1270bd79fffbe0bc%7Ciid%3A1
Plus i will need a charger/discharger to measure battery capacity i presume?
Anyone help me on my journey please!
Thanks