dewalt 5ah/18v batteries £100 for 2

big-all · Post by **big-all** » Mon Jul 26, 2021 12:24 pm

its probably in 2018 the last time i saw 5ah dewalt at £50 now more usually about 65-68
https://www.ffx.co.uk/product/Get/Dewal ... -Batteries
https://www.ffx.co.uk/tools/Offers/ffx- ... lb1_Dewalt

fin · Post by **fin** » Wed Jul 28, 2021 10:19 pm

cheers for this mate just ordered a pair. think a fair few of my older batteries are on the decline bigstyle. some seem to charge up super quickly but its working out which ones.... i number them so the oldest are 1 and 2 but theyve been goosed for ages so theyre sat in my garage.... so 3-13 i think it is are in the battery fleet.....

there is a couple that seem to charge super quick like

big-all · Post by **big-all** » Thu Jul 29, 2021 10:52 am

yes always number to have any chance off working out whats what

quicker the charge generally means less capacity being retained

i like experimenting
i will use the same charger and same work light through several full cycles and log the run/charge times off each battery

oz0707 · Post by **oz0707** » Thu Jul 29, 2021 1:29 pm

Do you lot run them down? I've started doing it with my newest ones. Circular saw will say battery is done but get 2 or 3 hours out of it in the wireless. Reading around it might not be best practice with lithium but surely the wireless doesn't discharge them too low

ahfix · Post by **ahfix** » Thu Jul 29, 2021 2:26 pm

oz0707 wrote: ↑Thu Jul 29, 2021 1:29 pm Do you lot run them down? I've started doing it with my newest ones. Circular saw will say battery is done but get 2 or 3 hours out of it in the wireless. Reading around it might not be best practice with lithium but surely the wireless doesn't discharge them too low

I think that's bad for the cells. As I understand, they need to be discharged to 80% max to remain efficient.

I'm pritty sure my old hitachi set had circuitry and when the voltage dropped (cells at 80%) the tool just stopped dead and wouldnt run again. I dont think dewalts do that.

ah

fin · Post by **fin** » Thu Jul 29, 2021 5:34 pm

just run em till theyre flat for the tool theyre in then bang em on charge again.

mine are number up so ill have to try and work out which ones are the super quick chargers and maybe relegate em to just radio batteries

oz0707 · Post by **oz0707** » Thu Jul 29, 2021 6:15 pm

I was thinking why are they suitable for the radios then? I might stop my little experiment

fin · Post by **fin** » Fri Jul 30, 2021 6:26 pm

got mine delivered today. notice theyre back tot he yellow tops.... so easier to mark up rather than the black tops of the last batteries i bought. ill put them in the van tomorrow and check my numbers to see what they have got to be