On Monday, 19 February 2018 16:08:53 UTC, Fox's Mercantile wrote:
On 2/19/18 9:37 AM, KenO wrote:
"...identify the type of battery before attempting corrective measures"
Unfortunately the person I received the electronic device from removed
the batteries and does not remember if the batteries were zinc/carbon
or alkaline.

Simple really. Alkaline batteries leave what looks like white fuzzy
crystals. Some times with bluish green tint.

Zinc Carbon batteries leave what looks like rusty brown sludge. That is
also spread about more and not confined to just the terminals.

NiCd also white


NT