Expert opinion regarding charging a so called "dry car battery"

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MuqeetAsim (MuqeetAsim) 2014-04-06 06:44:07 +0500 #1

I ve installed a cmf calcium premium battery in my car, a volks wagon.... yesterday while entering the garage I turned the emergency lights on but forgot to turn these off after parking. Today in the morning when I was about to leave my home for job, I noted that the battery has died... Since it is a maintainance free, dry battery (the picture is attached), can I recharge it in the same nanner as simple wet batteries are recharged???
Waiting for an expert response from the senior members on this forum...
regards

faiz.aslam.121 (Faiz Aslam) 2014-04-06 07:06:23 +0500 #2

Copied from Internet
Interesting read;
Battery FAQ’s | AGM Battery - Challenge Batteries

Why can?t I charge my battery?
A problem can arise when you battery is extremely discharged, say a light is left on in the vehicle and the battery voltage drops below 7 volts. Some chargers will not charge a battery when the voltage is that low and you will have to take it to a professional to charge it for you. Chargers are getting better and there are some on the market that will start at 3 or even 0 volts. The problem is that the battery has developed an extremely high internal resistance (caused by sulfation) and the charger is not strong enough to push current through the battery.

Reviving Maintenance-Free Calcium Batteries | Infinitum Store

faiz.aslam.121 (Faiz Aslam) 2014-04-06 07:17:59 +0500 #3

Doesn't push start work? or get a jump from someone else's car. Read about your battery first, not sure how it behaves with Jump-starts.!

MuqeetAsim (MuqeetAsim) 2014-04-06 07:35:23 +0500 #4

yes i tried a jump start, but it doesn't seem working.... i ve called my neighbour and he says he has a dry battery charger, so waiting for him to come...

mansoor_qadir (mansoor_qadir) 2014-04-06 14:48:50 +0500 #5

Ur neighbor is kind..

Xulfiqar (Xulfiqar) 2014-04-06 15:54:34 +0500 #6

these are not dry, they have liquid electrolyte in them and can be charged. By your act of this deep discharge the battery life has gone down by some %

husnainkhan (husnainkhan) 2014-04-06 17:01:50 +0500 #7

Does jump starts harms this dry battery or the car when jump starting a car with such a battery through normal liquid batteries??

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Xulfiqar (Xulfiqar) 2014-04-07 12:38:20 +0500 #8

No harm done as long as you follow standard procedure for jump start.

btw - you have a liquid battery, pop the entire top cover in the middle to see the electrolyte.