Battery Chargers with variable Amp setting

Rew

On changers with vairable amp settings how do you know what to set it to fo different batteries?

feylya

Set it to the value on the side of one of the cells. That way it won't be forcing in more current than the cells can take.

Puding

as feylya said its normal displayed on the side of the cells, or if you can not see it you can normal look it up

Rew

feylya wrote: »

Set it to the value on the side of one of the cells. That way it won't be forcing in more current than the cells can take.

Makes sense

feylya

Of course it makes sense - I said it

kdouglas

feylya wrote: »

Set it to the value on the side of one of the cells. That way it won't be forcing in more current than the cells can take.

yup, just make sure you read the right value, 2/3A does not mean 0.66 Amps or 2-3Amps, it is the cell size

Rew

Whats the story if its not on the cells?

feylya

Do you know how many mAH the whole battery is?

Rew

Yeah the mAH is on them alright.

feylya

I'm fairly sure there's a way to figure out the ampage of a battery from the mAH but my brain isn't working at the moment. I'm sure someone more technical than me will be along shortly...

kdouglas

i generally just stick the battery on at the lowest setting (0.3A on mine) and leave it at that, it's a bit faster than slow charge (0.1A), but charging too fast can damage the battery i believe.

a 1000mAh battery charged at 1amp would take an hour to charge (in theory, add 20% for inefficency)
as a general rule of thumb, the max amps i set the charger to if im in a hurry is the amps necessary for 1 hour
so a 600mah battery i set to 0.6A
1400mah => 1.4A
1700mah => 1.7A
2400mah => 2.4A
etc...

ED E

kdouglas wrote: »

i generally just stick the battery on at the lowest setting (0.3A on mine) and leave it at that, it's a bit faster than slow charge (0.1A), but charging too fast can damage the battery i believe.

a 1000mAh battery charged at 1amp would take an hour to charge (in theory, add 20% for inefficency)
as a general rule of thumb, the max amps i set the charger to if im in a hurry is the amps necessary for 1 hour
so a 600mah battery i set to 0.6A
1400mah => 1.4A
1700mah => 1.7A
2400mah => 2.4A
etc...

Ehh, I charge my 1400s at 2.25! Hmmm. You have a TLP 4000c too dont you keith? Do your batts heat at all while charging.

Beast ASI

If I'm in a rush I should leave it at 5.5A, or the night before just set it on a discharge then recharge cycle on the TLP-15.

kdouglas

Lethal_Bullet wrote: »

Ehh, I charge my 1400s at 2.25! Hmmm. You have a TLP 4000c too dont you keith? Do your batts heat at all while charging.

i used to have the 4000c, have the TP15 now

my batteries heat up very mildly towards the end of the charging cycle, which is normal, i've never found a need to have my battery charged in less than an hour and i'd rather not charge my batteries too quick incase I damage them, im not saying the Amp ratings i use are the max you can use, they are just what I normally use at most.
Ordinarily when i'm charging i leave my batteries over night and stick them on slow charge

ED E

kdouglas wrote: »

i used to have the 4000c, have the TP15 now

my batteries heat up very mildly towards the end of the charging cycle, which is normal, i've never found a need to have my battery charged in less than an hour and i'd rather not charge my batteries too quick incase I damage them, im not saying the Amp ratings i use are the max you can use, they are just what I normally use at most.
Ordinarily when i'm charging i leave my batteries over night and stick them on slow charge

But slow is just a trickle is it not? Do they last long?

When I use 2.25 it takes 40-60 mins for a 1400 8.4 leaving it warm. Seems ok. I'd do it slower but with 3 peoples batts it would take a week:p

Fallschirmjager

i have always charged like KD said here on the lowest setting. it may take a bit longer (then again i wouldnt know as i have never charged any other way) but i have not had one battery go wallop yet (the only exception was the faulty one). incidentally, the battery i got last year with my dboys has always been charged this way too and it is still going strong, so i am guessing if its good enough for that its good enough for the higher quality ones i have...