John Robertson schrieb:
On 2018/02/17 12:06 PM, Reinhard Zwirner wrote:

[...]
As has been suggested in a previous thread: (concentrated) white
vinegar.

Actually the EverReady battery engineer I spoke to back in the late
80s recommended white vinegar:water with a 50:50 ratio, not pure or
concentrated white vinegar.

My experience: concentrated white vinegar achieves best results. But
YMMV ...

[...]
So be sure to identify the type of battery before attempting
corrective measures.

FACK!

Best regards

Reinhard