Stupid battery and solar questions
I figure I am going to have a lot of them, so I better put all in one thread :B. My situation: - I mainly want solar for running residential freezer and fridge, maybe also for charging my shave ...
Forum Discussion
That Deka 145 is the same battery I bought. You want to let your solar panel recharge it at 14.4V. It does recharge slowly. It does from time to time like to be bumped with about 20 -22 amps at 14.4V per battery via a timed set up like a switched power supply unit like a Mega Watt S400-12 set at 14.4V and a timer.
Your EX650 will not have enough amps to really "bump" or give a stiff charging rate to those batteries. You probably would need something along the lines of a Honda EU2000i.
Leaving AGM batteries on solar panel recharges all the time will not get the batteries to 100% SOC like they need every week or two when in use.
I would make sure you have at least 360 watts of 12v panel able to provide for two of those batteries. PWM would work, but you'd need to shop around for a good price on 12V panels. If you could find a pair of 160W panels, you'd be golden almost all the time except in winter, perhaps, depending on daily usage.
I have a 150w solar panel that I run portable, that I have no problem getting 8.5 to 9 amps per hour for 5 or 6 hours in the shortest days of winter in Quartzsite, chasing and aiming it at the sun 2 or 3 x a day. It almost always covers my daily usage, unless I ran the forced air heater a lot the evening before. Then I run the generator for an hour in the morning and the MegaWatt, to give the battery a good start on a full recharge that day.
Those batteries were $125 last summer in Oceanside, CA or nearby there. Or at least that's what I paid. But I did have to leave a $30 core old battery. One T-1275 got traded in.
Your EX650 will not have enough amps to really "bump" or give a stiff charging rate to those batteries. You probably would need something along the lines of a Honda EU2000i.
Leaving AGM batteries on solar panel recharges all the time will not get the batteries to 100% SOC like they need every week or two when in use.
I would make sure you have at least 360 watts of 12v panel able to provide for two of those batteries. PWM would work, but you'd need to shop around for a good price on 12V panels. If you could find a pair of 160W panels, you'd be golden almost all the time except in winter, perhaps, depending on daily usage.
I have a 150w solar panel that I run portable, that I have no problem getting 8.5 to 9 amps per hour for 5 or 6 hours in the shortest days of winter in Quartzsite, chasing and aiming it at the sun 2 or 3 x a day. It almost always covers my daily usage, unless I ran the forced air heater a lot the evening before. Then I run the generator for an hour in the morning and the MegaWatt, to give the battery a good start on a full recharge that day.
Those batteries were $125 last summer in Oceanside, CA or nearby there. Or at least that's what I paid. But I did have to leave a $30 core old battery. One T-1275 got traded in.
