karmabiker
New member
I got an email from dometic a week ago promising a same day solution. Nothing since...
that may not be true if I understand right....... my understanding is the discharge is not linear. More % it is discharged.... the easier it discharges. Also different type batteries should not be discharged below a certain total % or you begin to damage the battery's life pretty quickly. could be wrong but believe with agm your not suppose to let it go below 50% discharge.....Based on the spec of the CFX 60W, Rated current @ 12V DC is 8.2A. Assuming I need the battery to run the CFX60 continuously for 24hr, the Amp-Hour would be 24hr X 8.2 A = 196.8 Amp-hour, say 200AH ......
I need some help. I am sure a lot of you guys had done this kind of design before.
I am looking to size the 2nd battery that big enough to run the CFX 60W in my 4Runner.
I plan to use 2nd battery that connected to RedArc BCDC1225D that connect to 100W solar panel and to starter battery. This way the 2nd battery will get charge from either solar or alternator.
Based on the spec of the CFX 60W, Rated current @ 12V DC is 8.2A. Assuming I need the battery to run the CFX60 continuously for 24hr, the Amp-Hour would be 24hr X 8.2 A = 196.8 Amp-hour, say 200AH
In addition, since this thing won't be running full load all the time, I am thinking it only load with 25% of the time, now 200AH come down to 50AH
So I should get 2nd deep cycling AGM battery size around 100Ah? To at least keep it going for a day without charging the battery.
I am not sure if my math and unit are correct since I am not an electrical engineer. Please help comment if I ma heading the right direction.
(DOMETIC: I called and talked to your technical support, she was very sweet, but do not have a clue to answer technical question. I had to wait for her to look up product spec, which I also have, and read to me. Don't you have engineer on staff that can help your customer with technical question?)
that may not be true if I understand right....... my understanding is the discharge is not linear. More % it is discharged.... the easier it discharges. Also different type batteries should not be discharged below a certain total % or you begin to damage the battery's life pretty quickly. could be wrong but believe with agm your not suppose to let it go below 50% discharge.
is there another number along with the ah rating of the battery your looking at. Maybe Im behind the times but thought it was presented as AH @ x amps. another words..... if battery is 200ah @5amp...... then it only last that 200 hours with a 5amp draw... would be less with an 8amp draw.
I'm running a CFX85 - one compartment on frozen and the other on fridge. My 24H consumption on the fridge is in the 20AH range on the fridge for the first day of cooling and 15AH on subsequent days. YMMV.
House battery is a Duracell AGM - Capacity 20hr: 55AH Solar is a 60W lensun with a victron controller. The controller and a quality panel are key...
I've never run out of juice with this combo. Even on cloudy days I'm generating enough to keep up.
Hey guys!
We are looking to see what kind of set ups you guys are running! What are your thoughts on your Dometic fridge? ...