4130fab Posted January 9, 2016 Report Share Posted January 9, 2016 I have two XS Power D3400 batteries that I've been running for the past two years. Recently my alternator went out which caused them to drain completely and sit in my truck dead for over a month. They have drained on me in the past before too when I went out of town for 2 months. I just took them out and charged them both up. Battery 1 was all the way down to 2.33v and Battery 2 was down to 4.91v. It took 3 days for each one to charge above 12.6, but now that I've disconnected the charger they are sitting way below 12.6v each after just 3 days. Battery 1 is at 11.2v, and Battery 2 is at 12.3v. They have been sitting in my garage with nothing connected to them. No power draw at all. I know they're supposed to stay at 12.6v or above. So does this mean they're done for since they won't maintain proper voltage? One of them also has a bulge in the top of the case if that makes any difference. That's the one that's sitting at 12.3v on the right in the photos. Couldn't really capture it in the photo.. This is the batt with the bulged top, hard to see in the photo though.. Battery 1 charge notes Battery 2 charge notes This is the charger I've been using battery #1 serial number is worn off unfortunately Bulged battery #2 serial number Quote Link to comment Share on other sites More sharing options...
ShadeTreeMechanic Posted January 9, 2016 Report Share Posted January 9, 2016 (edited) They might be a little hurt. I would go ahead and run them but that's just me. The rate of sulphation goes up as the voltage goes down. Is your charger one of those desulphation / pulse types? I use one to help failing batteries and it will keep them going longer. Anytime a battery is sitting for more than a week it should be put on trickle to fight sulphation. Even when your new battery is sitting at the store, the clock is ticking. Anyone know how to read the date codes on these? If you buy from a store you can pick the newest ones. Edited January 9, 2016 by ShadeTreeMechanic Quote 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
4130fab Posted January 9, 2016 Author Report Share Posted January 9, 2016 No I just have a standard two bay Battery Tender that I got off Amazon. I don't see anything mentioned about pulse or desulphation in the manual unfortunately. Quote Link to comment Share on other sites More sharing options...
Massivespl Posted January 9, 2016 Report Share Posted January 9, 2016 Get them load tested and see if there trash 1 Quote c-pillar flat wall 157.11db on music 2 crossfire 8k 4 NSV3 18s 4 crescendo 10s 4 Rockford pro 6.5s Quad excessive amperage 350alts 4 juicebox 3100s Link to comment Share on other sites More sharing options...
4130fab Posted January 9, 2016 Author Report Share Posted January 9, 2016 Can a Pep Boys or Kragen test be trusted? Quote Link to comment Share on other sites More sharing options...
ShadeTreeMechanic Posted January 9, 2016 Report Share Posted January 9, 2016 Maybe you could test it like a starting battery. Put it in the truck for a starting battery and measure voltage while cranking. It should not go below 9 volts for starting duty. Quote 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
4130fab Posted January 9, 2016 Author Report Share Posted January 9, 2016 Unfortunately I can't because my alternator isn't installed right now. Need to figure out if I need to buy new batteries or not before I take it to the shop to have my new alternator installed. Quote Link to comment Share on other sites More sharing options...
ShadeTreeMechanic Posted January 9, 2016 Report Share Posted January 9, 2016 Unfortunately I can't because my alternator isn't installed right now. Need to figure out if I need to buy new batteries or not before I take it to the shop to have my new alternator installed. So how are you going to take it to the shop with no alt? Put it on a trailer? Quote 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
_paralyzed_ Posted January 10, 2016 Report Share Posted January 10, 2016 If they drop in 3 days they most likely won't hold a load.It's worth investing in a charger with a desulphation option, it could bring these batteries back and give you another couple years.Or they my be toast. It's nice to have a good charger anyway. Quote Link to comment Share on other sites More sharing options...
4130fab Posted January 10, 2016 Author Report Share Posted January 10, 2016 Unfortunately I can't because my alternator isn't installed right now. Need to figure out if I need to buy new batteries or not before I take it to the shop to have my new alternator installed. So how are you going to take it to the shop with no alt? Put it on a trailer? I have AAA Quote Link to comment Share on other sites More sharing options...
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