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Old 07-10-2020, 07:40 PM   #1
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Default Solar charging raote

I recently acquired a 2016 roadtrek e-trek 800 with 400+ amps of solar. How long is the typical charging time for the solar to recharge the lithiumís?
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Old 07-10-2020, 08:07 PM   #2
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John,

My Suggestion - scrap this thread & start a new one like;

2016 Roadtrek ETrek 800 - Electrical Questions

That will catch those that know via ownership the answers you are looking for.
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Old 07-10-2020, 09:51 PM   #3
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I recently acquired a 2016 roadtrek e-trek 800 with 400+ amps of solar. How long is the typical charging time for the solar to recharge the lithiumís?

If they are way down, 800ah to recover. 400 watts of solar will give about 120ah per good sun day. Nearly 7 days to recharge that much, assuming no use in the van and no parasitic loss. The parasitic will be somewhere between 50 and 100ah per day depending on the rev level of battery, so you will use up most of you solar on that and take way more than a week to recharge.


Don't count on the solar to do much for you, the only way you will get charged is by running the engine or driving, in the real world.
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Old 07-10-2020, 09:59 PM   #4
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Originally Posted by booster View Post
If they are way down, 800ah to recover. 400 watts of solar will give about 120ah per good sun day. Nearly 7 days to recharge that much, assuming no use in the van and no parasitic loss. The parasitic will be somewhere between 50 and 100ah per day depending on the rev level of battery, so you will use up most of you solar on that and take way more than a week to recharge.


Don't count on the solar to do much for you, the only way you will get charged is by running the engine or driving, in the real world.
Booster knows this in spades, trust his suggestions.

By the way, does that model have the ability to be charged by Shorepower?
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Old 07-10-2020, 10:25 PM   #5
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If they are way down, 800ah to recover. 400 watts of solar will give about 120ah per good sun day. Nearly 7 days to recharge that much, assuming no use in the van and no parasitic loss. The parasitic will be somewhere between 50 and 100ah per day depending on the rev level of battery, so you will use up most of you solar on that and take way more than a week to recharge.


Don't count on the solar to do much for you, the only way you will get charged is by running the engine or driving, in the real world.
They are low enough that they won’t keep the lights on. I do have shore power, but the shop working on it has a r0 amp outlet. Sounds like I need to go to the shop on Monday. I can take it out and drive it. How long to charge the batteries by driving it.
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Old 07-10-2020, 11:16 PM   #6
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They are low enough that they wonít keep the lights on. I do have shore power, but the shop working on it has a r0 amp outlet. Sounds like I need to go to the shop on Monday. I can take it out and drive it. How long to charge the batteries by driving it.

If the underhood generator is working it will take at least 4 hours, probably more.
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