battery sequence

madoc1 · 07-15-2010, 05:05 PM

ready to do the 48v thingy. had one leaky old batt., so bought 3 new batts.

i know , but old owner evidently just bought enough to sell it. anyway-have 3 new and 5 one year old batts. does it matter which way or order they are mounted?

jim

madoc1 · 07-15-2010, 08:47 PM

what! no opinions? new batts first or older ones? jim

scottyb · 07-15-2010, 08:51 PM

It doesn't matter. The new batteries are going to be old batteries PDQ. The charger will see to that.

rabbitreborn · 07-15-2010, 08:55 PM

yeah, I agree... I hate to see new batteries mixed in with old batteries.... seems a shameful waste of money

madoc1 · 07-16-2010, 10:10 AM

thx. for the replys. i too hate to waste money-the 5batts are only one year old and just couldn't see throwing them away. the new ones are relatively inexpensive sam's. @ $67 each. will just have to keep a close eye on them. jim

scottyb · 07-16-2010, 11:02 AM

Here is a little more explanation on the mixing of old & new batteries

Mixing old & new Batteries?
It is generally not recommended to mix new and old batteries in a pack because they have very different charging needs. A new battery is quite active inside (high Specific Gravity) while an old one is not so much. (You can Google how a lead acid battery works) The new battery requires less charging than the old ones to come up to the required voltage for your cart. What happens when they are put in the same pack is the new ones are over charged while waiting for the old ones to come up... this over heats the new batteries essentially cooking them and results in a weakened condition and a shortened lifespan. Basically, the new ones come down to the level of the old ones eventually....

madoc1 · 07-16-2010, 11:27 AM

scotty, i am sure you are correct, but to carry the logic one step further-under good conditions a battery should last about 5 years i have read. so the one year old batts have 4 years left in them..if the new ones are knocked down to the 0ne years level, then there will be an 8 pack of 4 year olds. would have to spend 5x$67 just to gain one more year.

hopefully that is how it works. now if this was for a customer then it probably be different jim again, thx for the input

scottyb · 07-16-2010, 11:57 AM

Your locigic is correct. I'm just trying to let you know what to expect, since you asked. When a pack is more than 1 yr old I recommend adding used batteries. Of course it all depends upon the condition (SG readings) of the old batteries. I have seen 2 yr old batteries all (ab)used up.

07-15-2010, 05:05 PM	#1
madoc1 no clue Join Date: Sep 2009 Location: spicewood, texas Posts: 3,308	battery sequence ready to do the 48v thingy. had one leaky old batt., so bought 3 new batts. i know , but old owner evidently just bought enough to sell it. anyway-have 3 new and 5 one year old batts. does it matter which way or order they are mounted? jim

07-15-2010, 08:47 PM	#2
madoc1 no clue Join Date: Sep 2009 Location: spicewood, texas Posts: 3,308	Re: battery sequence what! no opinions? new batts first or older ones? jim

07-15-2010, 08:51 PM	#3
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,417	Re: battery sequence It doesn't matter. The new batteries are going to be old batteries PDQ. The charger will see to that.

07-15-2010, 08:55 PM	#4
rabbitreborn Gone Wild Join Date: Jun 2010 Location: Central Florida Posts: 2,757	Re: battery sequence yeah, I agree... I hate to see new batteries mixed in with old batteries.... seems a shameful waste of money

07-16-2010, 10:10 AM	#5
madoc1 no clue Join Date: Sep 2009 Location: spicewood, texas Posts: 3,308	Re: battery sequence thx. for the replys. i too hate to waste money-the 5batts are only one year old and just couldn't see throwing them away. the new ones are relatively inexpensive sam's. @ $67 each. will just have to keep a close eye on them. jim

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07-16-2010, 11:02 AM	#6
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,417	Re: battery sequence Here is a little more explanation on the mixing of old & new batteries Mixing old & new Batteries? It is generally not recommended to mix new and old batteries in a pack because they have very different charging needs. A new battery is quite active inside (high Specific Gravity) while an old one is not so much. (You can Google how a lead acid battery works) The new battery requires less charging than the old ones to come up to the required voltage for your cart. What happens when they are put in the same pack is the new ones are over charged while waiting for the old ones to come up... this over heats the new batteries essentially cooking them and results in a weakened condition and a shortened lifespan. Basically, the new ones come down to the level of the old ones eventually....

07-16-2010, 11:27 AM	#7
madoc1 no clue Join Date: Sep 2009 Location: spicewood, texas Posts: 3,308	Re: battery sequence scotty, i am sure you are correct, but to carry the logic one step further-under good conditions a battery should last about 5 years i have read. so the one year old batts have 4 years left in them..if the new ones are knocked down to the 0ne years level, then there will be an 8 pack of 4 year olds. would have to spend 5x$67 just to gain one more year. hopefully that is how it works. now if this was for a customer then it probably be different jim again, thx for the input

07-16-2010, 11:57 AM	#8
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,417	Re: battery sequence Your locigic is correct. I'm just trying to let you know what to expect, since you asked. When a pack is more than 1 yr old I recommend adding used batteries. Of course it all depends upon the condition (SG readings) of the old batteries. I have seen 2 yr old batteries all (ab)used up.

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