'Trickle' charging two 6V batteries - Page 2 - Escape Trailer Owners Community

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Old 12-16-2016, 06:21 PM   #11
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Originally Posted by Brian B-P View Post
...It's the same as with any battery made up of multiple cells...
Exactly. 12v batt = 2 X 6v batts = 6 X 2v batts. (6 holes to add water...)

Now, lithium batteries are another story altogether. But no Escape owners to my knowledge are using lithiums. (I will be first, when they come down in cost to about $200. )

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Old 12-16-2016, 06:59 PM   #12
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Now, lithium batteries are another story altogether. But no Escape owners to my knowledge are using lithiums. (I will be first, when they come down in cost to about $200. )
Maybe Elliott will beat you - he seems pretty serious about advanced hardware :
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I'm thinking about going with a full lithium+solar setup on a 19' Escape that would let me work from the road without hookups and with minimal generator use, as well as being able to run A/C for an hour or two when the dog's left alone.
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Old 12-16-2016, 07:10 PM   #13
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We've been using the Battery Tender Plus since we bought the trailer in 2013. I pull the batteries in the winter and leave then on a bench in the garage, connected together with the same jumper that is used on the trailer. The trailer is in a storage lot.

I also use the BT Plus in the summer when the trailer is parked in the driveway. Seems to do the job.

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Old 12-16-2016, 08:39 PM   #14
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6V Battery charging

If the two 6V batteries were being used as 6V sources independently, then it would be better to charge them independently. Because they are used in series to provide 12 Volts, they are subjected to the weakest cell of the combined batteries. That being the case, the charging cycle is subjected to that same weakness. So, it really makes no difference because of they way the batteries are being used. If they were used as independent 6V batteries you could reason that charging them separately, you would still have one good 6V battery if one cell failed.
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Old 12-16-2016, 08:57 PM   #15
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Thanks all for the knowledge, wisdom and practical experience -- as usual. As it turns out, I'm getting a charger that can do both 6V and 12V (NOCO Genius G3500), so I might charge them separately when first putting them in storage in hope that as they age, I might have a better chance of noticing a failure of one (unlikely), then leave them in series on maintenance charge while stored.
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Old 12-17-2016, 12:21 PM   #16
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We took the dual 6V batteries out of our trailer when we put it in storage middle of October and put them in our basement where they have been sitting for two months now. We bought a NOCO Genius G7200 and are wondering if we should connect the batteries in parallel and use the 12V setting to charge them back up and leave them on the Maintenance (trickle) mode for the rest of the winter, or is it better to let them run down more before re-charging? We are wondering if there would be an issue with the battery memory if they don't go right down before re-charging. Maybe that isn't an issue but we're not sure about how that works. Any suggestions or explanations would be greatly appreciated.
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Old 12-17-2016, 12:46 PM   #17
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Originally Posted by JabberwockJazzy View Post
We took the dual 6V batteries out of our trailer when we put it in storage middle of October and put them in our basement where they have been sitting for two months now. We bought a NOCO Genius G7200 and are wondering if we should connect the batteries in parallel and use the 12V setting to charge them back up and leave them on the Maintenance (trickle) mode for the rest of the winter, or is it better to let them run down more before re-charging? We are wondering if there would be an issue with the battery memory if they don't go right down before re-charging. Maybe that isn't an issue but we're not sure about how that works. Any suggestions or explanations would be greatly appreciated.
Note that two 6V batteries in parallel are 6V; 12V if they're in series.

Others who know more will chime in, I'm sure, but as far as I know, there is no memory effect in lead-acid batteries. Charge 'em up with a good charger (which you've got) and leave them on maintenance charge over the winter.
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Old 12-17-2016, 12:50 PM   #18
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Thanks for the quick reply! Shows you how much I know "in parallel" (lol); I'm pretty sure I meant "in series" so they do act like a 12V battery.
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Old 12-17-2016, 01:00 PM   #19
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I have been more than satisfied with our BatteryMinder charger. They use a patented high frequency electronic pulses technology rather than high voltages to prevent sulfation. Their explanation made sense to me Avoid Battery Sulfation with a BatteryMINDer Battery Charger so I bought one. They aren't cheap, but by the end of 6 years of use, my dual 6v Interstates were still performing like new when we sold our 17B.
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Old 12-17-2016, 01:36 PM   #20
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or is it better to let them run down more before re-charging? We are wondering if there would be an issue with the battery memory if they don't go right down before re-charging.
Just about anything is better than letting them discharge completely. That was the practice for Ni-Cads of yesteryear. Trickle charge or charge monthly is good, much better than doing nothing or letting them deeply discharge.

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