Lithium Good/Bad

[gow589]

How do you know if a Lithium battery is good bad or going bad? If it charges ok, is it ok? If you test it with a load meter is it ok? Are there signs when they fail?

[hall woo]

SINGLE CELL TEST

Low capacity is a sign when they are going bad, test using AFI Whatmeter , load with 2c ( use light bulb), monitor with DVM, disconnect when down to 3V, check AH on whattmeter.

2 TO 4 CELL

You can also hook up a FMA voltage guard ( 2 cell to 4cell) auto cutoff to test packs.
Good up to 20 amps, if I'm not mistaken.

[vintage1]

If they drop more volts than they outta,
Or you find they are fatter and shorta,
If they smell of after shave lotion,
Or explode in a great commotion,
When the juice seems prematurely sucked,
Then you know they are truly...on the way out. :D

[gow589]

SINGLE CELL TEST

Low capacity is a sign when they are going bad, test using AFI Whatmeter , load with 2c ( use light bulb), monitor with DVM, disconnect when down to 3V, check AH on whattmeter.

2 TO 4 CELL

You can also hook up a FMA voltage guard ( 2 cell to 4cell) auto cutoff to test packs.
Good up to 20 amps, if I'm not mistaken.


Checking capacity as you do with nicads by cycling them to 3V?

[max z]

If they drop more volts than they outta,
Or you find they are fatter and shorta,
If they smell of after shave lotion,
Or explode in a great commotion,
When the juice seems prematurely sucked,
Then you know they are truly...on the way out. :D
:D :D :D
Max.