can you charge these the same way you charge a flooded lead acid battery
1984477
Optima and nearly all mfr's. of AGM batteries like these recommend a three stage, digital, charger. Stage 1 is a bulk delivery, at peak voltage, Stage 2 is a tapering charge; still at higher voltage but not continuous delivery, and Stage 3 is more of a maintenance mode where the charger only delivers capacity to the battery if it needs it, while maintaining the standing voltage at around 13.5VDC. I have my pair connected to a Digital MinnKota 210C(two 5A banks), and I use a Schumacher 15A single bank ship and shore marine model charger I purchased on the web as a backup. Both work exceptionally well with the Optima's, do not overcharge them, and keep the standing voltage where it needs to be. Optima and nearly all mfr's. of AGM batteries like these recommend a three stage, digital, charger. Stage 1 is a bulk delivery, at peak voltage, Stage 2 is a tapering charge; still at higher voltage but not continuous delivery, and Stage 3 is more of a maintenance mode where the charger only delivers capacity to the battery if it needs it, while maintaining the standing voltage at around 13.5VDC. I have my pair connected to a Digital MinnKota 210C(two 5A banks), and I use a Schumacher 15A single bank ship and shore marine model charger I purchased on the web as a backup. Both work... » Read More Optima and nearly all mfr's. of AGM batteries like these recommend a three stage, digital, charger. Stage 1 is a bulk delivery, at peak voltage, Stage 2 is a tapering charge; still at higher voltage but not continuous delivery, and Stage 3 is more of a maintenance mode where the charger only delivers capacity to the battery if it needs it, while maintaining the standing voltage at around 13.5VDC. I have my pair connected to a Digital MinnKota 210C(two 5A banks), and I use a Schumacher 15A single bank ship and shore marine model charger I purchased on the web as a backup. Both work exceptionally well with the Optima's, do not overcharge them, and keep the standing voltage where it needs to be. « Show Less
1984478
Yes. My boat has an automatic on-board charger. Any 12volt automatic charger will work.
1984479
I have been doing that for years & never had a problem. I have a new charger with a setting for AGM batteries & use that now.
1984480
A couple of things to know about these type of batteries. One never let them sit for long periods of allowing them to discharge below 10.5 volts. They will not recover. I have a battery tender in my boat which regulates these batteries at full charge at all times. Second your charger should have a AGM setting. You can find what you need on optima's web site. http://www.optimabatteries.com
2025913
Yes you can as long as the amp output is high enough. But you are able to connect easily to the terminal posts of these batteries.
1127875
You could connect both sets of leads to one battery and get 10 Amps but you might confuse the charger. Each set of leads receives 5 Amps. I recommend talking to the manufacturer to see if that application will work correctly.
876849
The mfg would be able to answer that. We used it for flooded lead acid, the results were of no value. 6 out of 10 times it would fail new batteries .
1794439
Yes, but they can be slightly discharged. It's best to charge them when they arrive. You won't do any harm because the charger is smart (unlike the old-school chargers, "dumb chargers," that used timed charging methods).
731389
I would think you could. I have the charger made by the manufacturer of these batteries.
1878943
What I have done in the past was to charge said batteries in another charger just to pump them up a little. Then I can use the LaCrosse charger to finish them up.
1973894
yes, 12 volt lead acid battery is fine. Observe polarity and fuse it with a 3 AMP fuse close to the battery.
1555809
yes you can,I bought some solar lights that had very low voltage batteries and it charged them just fine.
2023491
You can charge these batteries with any makita charger designed to charge makita 18v slide style batteries. Input voltage does not matter.
924619
Where I use this battery it has a build in charger. The one on amazon "Sealed Lead Acid Battery Charger UPG D1724" should work fine. It is only $8.29. http://www.amazon.com/Sealed-Battery-Charger-UPG-D1724/dp/B001G8AIMU/ref=pd_bxgy_p_img_z
650425
Probably not. If your batteries aren't marked as AGM batteries, this isn't the charger for you. AGM batteries charge at a higher voltage then conventional lead acid batteries. BatterMinder does make a charger for regular lead acid batteries. You can check their web site for the correct model, then check Amazon for a good price.
1351591
Tom, the controller onlt supports Sealed lead acid (agm), Gel, and Flooded. Many companies state that the Lithiums can be a direct replacement for sealed lead acid, however, some of this batteries require a smart charger that cuts all the current into the battery once it's full rather than floating it. Therefore we cannot guarantee that is going to safely charge the battery.
780566
It is recommended that you use a maintenance-free absorbed glass mat (AGM) battery. Lead-acid batteries can boil over if they're too discharged. Current is pulled, not pushed, so normally you'll be ok. A poor lead-acid battery could boil over from rapid charging.
720192
Yes and no. Yes if the battery is freshly discharged and a resently purchased. No,If the battery sits around in a discharged state.The lead plates oxidize or sulfates. This sulfation acts as insulation and interfears with the transfer of electrons between the plates. Thus, it won't charge or discharge. The charger you ask about is more of a maintainer type or light duty charger. More for motorcycle batteries. I would buy a heavier duty charger with an amp meter . They're more expensive but they're worth it.Hope this helped . .
1369977
You can, it will not fry the batteries. It will only charge the batter if it needs charging.
1630639
These charge controllers are made to support sealed lead acid batteries and flooded wet cell batteries. The charging parameters cannot be adjusted. Please let us know if you have any further questions. Kind Regards, AW