Dead Battery

Reply Subscribe

Thread Tools

Oct 23, 2018 | 02:56 PM

#21 (permalink)

ZERACER

Senior Member

Joined: Nov 2006

Posts: 6,568

Likes: 755

From: Orange County CA.

Re: Dead Battery

I believe there is also an issue where the batteries corrode and destroy the circut board inside causing a battery draining short. Do a search on sirens.

Oct 23, 2018 | 03:41 PM

#22 (permalink)

Hindin

Joined: Mar 2010

Posts: 236

Likes: 25

From: Alaska

Re: Dead Battery

Quote:

Originally Posted by ZERACER

I believe there is also an issue where the batteries corrode and destroy the circut board inside causing a battery draining short. Do a search on sirens.

You are correct. The corrosion from the failed batteries have caused havoc with the circuit board in the siren module. My question more specifically was prior to total failure and acid leakage from the batteries, are they being recharged and what effect might failing/old NI-MH batteries have on car battery drain. My experience with NI-MH batteries is that as the battery ages, its ability to hold a charge decreases which results in more frequent recharging.

Oct 23, 2018 | 03:50 PM

#23 (permalink)

onehundred80

Senior Member

Joined: Apr 2006

Posts: 25,432

Likes: 647

From: Ontario

Re: Dead Battery

Quote:

Originally Posted by Hindin

I have no recollection of these batteries draining the car battery. They leak when they are at the end of their life and the electrolyte inside finally eats through to the outside. I presume that they are self regulating with regard to charging, maybe that accounts for the extensive circuit board inside them. They do not trickle charge very easily if at all.

Last edited by onehundred80; Oct 23, 2018 at 04:02 PM.