discover a comprehensive directory of free and low cost camps check out our comfortable cushions check out the new remote control Jockey Wheel Lithium Batteries Learn more about Sat Phone Sales Learn more about Melbourne City Caravans Pet Accessories
Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: Solar output Query


Member

Status: Offline
Posts: 22
Date:
Solar output Query


Hi all,

I have installed a 200 WT panel.

I run 2 130 amp AGM batteries.

Batteries are used for very little as I am at home.

My issue is after being in sun for 3 days the 240 volt charger goes to Boost when turned back on.

Should the panel do the job or will the charger always cut in.

Thanks for any info.

Bill

 



__________________


Senior Member

Status: Offline
Posts: 392
Date:

Might just be a mismatch between what the solar controller leaves the batteries at and what the mains charger sees when first turned on. I don't see much of a problem if the mains charger only goes in Boost mode for long enough to resolve the difference between the battery resting voltage and charger output voltage. It is normal operation for a charger to end absorption at about 13.8 volts and for the battery to drop back to around 12.6/8 after resting for a few hours. Have you measured the battery voltage before turning the mains charger to On?

If you do want to use the batteries when out on the road, you could consider more solar, at least another 200 Watt panel. It takes quite a lot to pump up a 260 Ah battery bank that has been drawn down a fair bit.

Iza

__________________


Member

Status: Offline
Posts: 22
Date:
RE: Solar output Quer.y


Thanks for the reply I will test the batts next time before turning the charger. I have another 80 at and will set that up as well. May get another 200 to mount as well. Should just have enough room. Did not think when a small amount is drawn a boost for 3 hours would be required Showing 1.7 Amp Input from monitor in van .charging 13. 7 volts. Bill

__________________


Guru

Status: Offline
Posts: 5190
Date:
RE: Solar output Query


Trouble is sun is not out all day . So you need almost 100% more than you think to charge batteries . As said depends on 240v charger ? One of mine does that for a few minutes, assume after measuring volts , battery. condition it sets itself . Note it seems to do it more when fridge or some load .

__________________
Whats out there


Senior Member

Status: Offline
Posts: 140
Date:

I've got the same AH and run 2x200w panels via redarc 1240 and no worries, though we don't use a lot of power either
( 3 way fridge )
Don't think you have much to worry about really..... that being said it won't hurt to add another panel :)



-- Edited by kesa32 on Saturday 14th of July 2018 08:20:32 PM

__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us
Purchase Grey Nomad bumper stickers Read our daily column, the Nomad News The Grey Nomad's Guidebook