reviving 8vlt 4 year old exides?

src9 · 06-23-2009, 11:56 AM

is it worth the time/effort to try and revive batts this old, or spend the money on new ones? do any products (electrolyte) work? the batts have been sitting for a few years--most likely uncharged. i added distilled water and desulfated them with my charger but haven't yet tried to charge them.

oxfordlawn · 06-23-2009, 03:57 PM

as you can see by the lack of responses, this is a hard one to answer without some testing...BUT...if they were sitting for a few years uncharged...consider them no good..go buy new batteries and turn the old ones is for the core charges. Even if you revive them somehow, which I doubt you can...you will forever be plagued with battery problem after battery problem in the very near future. DONE!

src9 · 06-23-2009, 06:56 PM

i pretty much assumed that, but i thought i'd at least ask. thanks.

GLEEMO · 06-24-2009, 08:06 AM

Never say never.

Clean up Batteries and cables (distilled Water).
Take Voltage readings ( it needs 37 Volts to turn charger on)
Put charger on and let it charge completely (up to 16 hours)
30 minutes after charging take reading again.

Drive for 15 to 30 Minutes and repeat process several times.
If the Batteries are going to be any good they will gain a little each
time you charge for the first 6-10 times.

Rejuv will not bring a bad battery back, but may help Marginal Batteries

OLD MEC · 06-24-2009, 03:36 PM

Forget the "SNAKE OILS OUT THERE" and replace before the bad batterys cause more costs because of replacing controller and motors etc.

src9 · 06-24-2009, 04:36 PM

all i'd really like to do is see if this cart works before i spend the money on new batteries. the batteries are out of the cart so i'm charging them individually at 2 amps with a 12 volt charger for about an hour/1.5 hrs. how many volts do i need in each bat. before i can put them back in the cart and charge them with the 48 volt charger?

OLD MEC · 06-24-2009, 05:08 PM

GMORRISON is correct 37 volts TOTAL BATTERY PACK ( MINIUMUM ) before charger will kick in

src9 · 06-24-2009, 05:13 PM

ok, thanks.

dcannow · 06-25-2009, 12:47 PM

Go with the Morrison outline. But you might as well expect a short lifespan on the battery pac.

06-23-2009, 11:56 AM	#1
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20	reviving 8vlt 4 year old exides? is it worth the time/effort to try and revive batts this old, or spend the money on new ones? do any products (electrolyte) work? the batts have been sitting for a few years--most likely uncharged. i added distilled water and desulfated them with my charger but haven't yet tried to charge them.
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20

06-23-2009, 03:57 PM	#2
oxfordlawn just hangin' around Join Date: Jan 2009 Location: Oxford Flo-Rida Posts: 1,102	Re: reviving 8vlt 4 year old exides? as you can see by the lack of responses, this is a hard one to answer without some testing...BUT...if they were sitting for a few years uncharged...consider them no good..go buy new batteries and turn the old ones is for the core charges. Even if you revive them somehow, which I doubt you can...you will forever be plagued with battery problem after battery problem in the very near future. DONE!

06-23-2009, 06:56 PM	#3
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20	Re: reviving 8vlt 4 year old exides? i pretty much assumed that, but i thought i'd at least ask. thanks.
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20

06-24-2009, 08:06 AM	#4
GLEEMO just leave me alone Join Date: Aug 2008 Location: Tennessee Posts: 5,643	Re: reviving 8vlt 4 year old exides? Never say never. Clean up Batteries and cables (distilled Water). Take Voltage readings ( it needs 37 Volts to turn charger on) Put charger on and let it charge completely (up to 16 hours) 30 minutes after charging take reading again. Drive for 15 to 30 Minutes and repeat process several times. If the Batteries are going to be any good they will gain a little each time you charge for the first 6-10 times. Rejuv will not bring a bad battery back, but may help Marginal Batteries

06-24-2009, 03:36 PM	#5
OLD MEC Gone Wild Join Date: Mar 2009 Location: South Texas Posts: 2,391	Re: reviving 8vlt 4 year old exides? Forget the "SNAKE OILS OUT THERE" and replace before the bad batterys cause more costs because of replacing controller and motors etc.

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06-24-2009, 04:36 PM	#6
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20	Re: reviving 8vlt 4 year old exides? all i'd really like to do is see if this cart works before i spend the money on new batteries. the batteries are out of the cart so i'm charging them individually at 2 amps with a 12 volt charger for about an hour/1.5 hrs. how many volts do i need in each bat. before i can put them back in the cart and charge them with the 48 volt charger?
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20

06-24-2009, 05:08 PM	#7
OLD MEC Gone Wild Join Date: Mar 2009 Location: South Texas Posts: 2,391	Re: reviving 8vlt 4 year old exides? GMORRISON is correct 37 volts TOTAL BATTERY PACK ( MINIUMUM ) before charger will kick in

06-24-2009, 05:13 PM	#8
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20	Re: reviving 8vlt 4 year old exides? ok, thanks.
src9 Not Yet Wild Join Date: Jun 2009 Posts: 20

06-25-2009, 12:47 PM	#9
dcannow Gone Wild Join Date: Dec 2008 Location: Liberty Lake, WA Posts: 479	Re: reviving 8vlt 4 year old exides? Go with the Morrison outline. But you might as well expect a short lifespan on the battery pac.

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