[rookiedaddy]

strange... anyone had similar experience?

here are 2 pics of the Eneloop AA...




The date code... 09-03AV


This is a new from package Eneloop, after a R&A in C9000, I put it in EZAA R2 for a burn-in test... continuous running in low. Took it out for Voltage checking after 20 hours, 1.02V, and was shock to find it leaked/rusted?

The EZAA R2 positive contact spring and surrounding area shows no signs of any foreign material, Q-tip (dry and DeOxIT) shows nothing at all (unless there are some microscopic particles ).

This is my third case of rechargeable cell going bad... the first was a Recyko+ AAA cell corroded in a Brother Labeler(at the positive terminal too), second was a China-made Sony CycleEnergyBlue not terminating (after been in C9000 for 4 hours at 1A charging) and temperature goes up >55 degree C.

[rookiedaddy]

A couple of Hybriloops used in an electric toothbrush:



I put it down to the damp environment. I have not seen any other cells do the same thing. Is it humid where you live?

[sturr]

Seems like a rust and not seems like a leakage because electrolyte is nearly transparent liquid.

[mrzimm]

Rust can very oftern apper when there is electrolyte leakage.
Anyway you are correct too - this may be just rust from outside reasons.