trevskoda
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Correct but what or how are you going to replenish you 12v battery unless you have a onboard charger pluged into mains or a vast amount of solar panels,or running engine all night.
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- Thread starter molly 2
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Correct but what or how are you going to replenish you 12v battery unless you have a onboard charger pluged into mains or a vast amount of solar panels,or running engine all night.
harrow
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TissyD
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I fitted an inverter the other week but it tripped because the solar panel was putting in too much power. I checked with the local sparky and he said that because the solar charger was 12/24 volt it was switching over to 24 volt to counteract the power taken out by the inverter.
molly 2
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Thanks for your replys sparky ,do you think it would need to have the engine running to work or would the sp give enough volts.
r4dent
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As I understand it, the requirement is to use a wheel chair during the day and then charge the 24v batteries overnight.
1) Best solution is to connect to a 240v EHU and use the existing 24v charger plugged in to a mains socket in the van. But this rules out wild camping.
2) Next best is to get 240v from a generator but this means running the gennie at night. Unpopular and also expensive.
3) Use a 12v/24v converter. is will tend to flatten the 12v battery and you must have a reliable means of charging the 12v battery the next day. Engine or Solar.
Get someone who knows to ensure that the wiring is up to spec for the job. Get large batteries in the van.
4) Use 12v / 240v invertor then existing 240v /24v charger Everything in 3 applies, but even more so because of the extra losses & inefficiency involved.
IMHO best solution whilst wild camping is to keep travel in electric chair down to an absolute minimum so you can get 3/4 days from a charge and take a cheap 240v generator for emergency daytime use.
Then every 3 or 4 days go to a site with EHU, and charge the batteries and empty the waste etc.
1) Best solution is to connect to a 240v EHU and use the existing 24v charger plugged in to a mains socket in the van. But this rules out wild camping.
2) Next best is to get 240v from a generator but this means running the gennie at night. Unpopular and also expensive.
3) Use a 12v/24v converter. is will tend to flatten the 12v battery and you must have a reliable means of charging the 12v battery the next day. Engine or Solar.
Get someone who knows to ensure that the wiring is up to spec for the job. Get large batteries in the van.
4) Use 12v / 240v invertor then existing 240v /24v charger Everything in 3 applies, but even more so because of the extra losses & inefficiency involved.
IMHO best solution whilst wild camping is to keep travel in electric chair down to an absolute minimum so you can get 3/4 days from a charge and take a cheap 240v generator for emergency daytime use.
Then every 3 or 4 days go to a site with EHU, and charge the batteries and empty the waste etc.
sparrks
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Depends on your setup capacity wise.
I have 2 x 75Ah batts which are charged by a Sterling b2b. My biggest single draw is my Waeco fridge/coolbox which is around 4A for around 20mins per hr, so 4Ah for 8hrs per 24hrs roughly = 32Ah per day. I do tend to travel a lot but have no solar, hook-up or indeed any other type of backup but have never had flat leisure batts. I don't have tv either. If I use my 12v 'oven' it is always when i'm traveling ie with the engine running. I have a large number of led lights but are switched so that I can only have on what is required.
Canalsman
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You could consider using a dedicated 24v solar regulator with suitable solar panel to do the job ...
If you don't have space on the roof, how about using a free standing panel outside the 'van with the regulator attached to the scooter's charging input using the appropriate style of plug?
If you don't have space on the roof, how about using a free standing panel outside the 'van with the regulator attached to the scooter's charging input using the appropriate style of plug?
sparrks
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I assume this was in response to my reply suggesting the 24v 3A inverter? At the time of replying it wasn't clear as to whether Molly wanted a 24v 1.8A charge current or as was the case to charge a 24v battery at 1.8A which would be around 28v. People often ask on here for a 19/20v charger etc.
molly 2
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That's interesting Jenny what power is the charger mine is 1.8 amps. 24 volts . I suspect yours is higher output for a faster charge .hope you had a good hunstman meet baz