AA LSD got wet - what's next?

Batteries and Chargers Rechargeable Batteries
1

I just got my Enelong AA's from FastTech fresh out of packaging and my sister in law asked if she could take two "for a child's toy"

What she didn't tell me it would be a cheap boat with zero sealing around the battery compartment :(

When i recovered my batteries (a week maybe, but boat spent most time outside of water) they were wet and there was slight brown discoloration (rust?) around the (+) pole.

Should I discard of them and remember this incident for future reference or are they safe to use?

thanks for any and all insight

_gergely_

2

I’d say safe, but keep an eye on them

3

Tell her she owes u new ones! Or never lend rechargable batteries to dummies

4

LOL……Can I borrow some batteries to put in a boat? She must have known they werent disposable if she asked to Borrow….make the jump lady, predict the outcome :~

They would likely be ok but I would get new ones….

5

I would use them, I have drowned rechargeable batteries some times without killing them.

the worst can happen is that they are defect and get this white crystals on the outside that would be a sign to deposit them.

6

Fresh water has pretty high resistance so unlikely they got more than wet. Clean off the rust and use them. If there was something that caused them damage NiMh doesn’t fail as violently as Li-ion so there’s not a lot of risk. As long as they still work fine in use keep using them.

7

thanks guys

'borrow them' was more likely just a figure of speech, as in 'can I borrow some toliet paper' LOL

after I posted this I found it amusing that I was asking advice regarding $2 batteries but I figured hípotethetically speaking it was a valid dilema anyway

guess I'll make a DMM reading on them once I get home and maybe mark them with a sharpie so I remember to keep an eye on them the first few times I use them

again, thanks, you learn good things here at BLF :)


-gergely

8

If you have a more advanced charger (MAHA C9000 for instance) or a friend with one, any defect or problem should be detected. Don't know about Enelong but Eneloop are supposed to be sealed.

Rust is usally not a good sign though. As you say, just mark them and don't mix them into the rotation with the others until you can test them properly.

9

no I don't have a MAHA but I use a nitecore intellicharger i2 which is supposed to detect defected batteries and warn about them - good idea!

10

I have an intellicharger i4, and I only charged AAs in it once… it was a pair of almost new Eneloops.

After about 2 hours, I checked on them and they were too hot to hold comfortably. I’ll never use it for AAs again.

11

hmmm, that's something to remember, thanks for the input

12

Were they standard eneloops or the XX variety?

13

Agree I think. I got a Nitecore i2 for LiOn but it’s supposed to work for NiMh so I tried a few. The few I tried got pretty warm. I’ve decided not to use it for NiMh as I have better chargers for that.

14

update:

got home and checked batteries on DMM

both read 1.31V

dunno if that says anything about future performance but I suppose that means they haven't shorted?

also I wiped away original discoloration and it didn't come back

looks promising - but I have no clue just using common sense

15

Just FYI: I tried writing received dates on some Eneloops with a Sharpie but it eventually just rubbed off . . .