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Post by prizfindr on Apr 25, 2019 15:16:49 GMT
I recently install a dedicated Lithium converter (PD4045-L), that charges my battery on Shore Power at a full 14.6 volts. No controller is involved. As expected, as the battery becomes full, the amperage drops. My understanding is that Lithium battery's do not like to remain fully charged 100% of the time. So my question is, when I am at campsites hooked up to shore power, is this ultimately damaging to the battery? Is there any way to avoid constant topping off of the battery when connected to shore power?
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Post by tattoo on Apr 25, 2019 16:35:22 GMT
I'm not sure why you would want to keep it hooked up at all when your using an AC plug if your battery is fully charged......
I don't think it's good for your battery to be charged that high.....
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Post by bupkis on Apr 25, 2019 18:24:32 GMT
Maybe if you stayed hooked up 24/7/365.
For a week or a weekend I would not worry.
if your PD4045L is on a separate breaker you could turn it off and then the lights/furnace/pump would drain your battery, so don't worry about it
in storage I would employ a disconnect switch so the LP/CO detectors don't drain your battery.
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Post by prizfindr on Apr 26, 2019 13:23:05 GMT
I'm not sure why you would want to keep it hooked up at all when your using an AC plug if your battery is fully charged......
I don't think it's good for your battery to be charged that high.....
Pretty practical reason, because not all my camping is boondocking, and it doesn't make sense to have to hook up to shore power, only to have to disconnected all the 12v devices in order to "protect" the battery. There is something wrong in the industry (lithium specific converters or "drop-in" lithium battery's) if that's the case. That said, I have since learned that the battery's BMS manages the voltage coming in, and it will reduce the voltage it accepts it if is full. Remaining hooked up for 1-3 weeks is fine, just not 24/7/365 (as bupkis pointed out) |
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Post by tattoo on Apr 26, 2019 13:28:40 GMT
Pretty practical reason, because not all my camping is boondocking, and it doesn't make sense to have to hook up to shore power, only to have to disconnected all the 12v devices in order to "protect" the battery. There is something wrong in the industry (lithium specific converters or "drop-in" lithium battery's) if that's the case. That said, I have since learned that the battery's BMS manages the voltage coming in, and it will reduce the voltage it accepts it if is full. Remaining hooked up for 1-3 weeks is fine, just not 24/7/365 (as bupkis pointed out) All it takes is a switch... That's no problem at all it's just like cutting on a light...... But if that's to much trouble leave it on..... Problem solved.......... |
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Post by bupkis on Apr 26, 2019 14:27:37 GMT
prizfindr, correct, the BMS is supposed to deal with this.
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Post by tattoo on Apr 26, 2019 15:13:01 GMT
^^^^ And that's a good thing........^^^^^^
But when you should cut it off you can........
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Post by bupkis on Apr 26, 2019 20:09:17 GMT
ya just unplug or switch off 'shore power', kinda fail safe and easy
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