matssundinsmom
New member
*Posted this in the wrong sub-forum, thought I would move it here.
I'm working on a fairly simple electrical circuit in my small camper and I'm confused about battery charging current limits.
The camper has 120V 15A shore cable which is connected by a breaker to 3 standard 15A wall outlets. There is also a 12V circuit powered by a 35AH AGM battery used for some LEDS and a fan. I have a 50W (I think) solar panel charging the 12V battery right now.
I would like to tie the 12V battery into my alternator, and potentially a battery charger, in order to give me some extra charge when needed. My problem is that the battery spec sheet lists the maximum charging current as 10.5A. My solar charge controller is rated for 30A, my alternator I believe is in the range of 60A, and a charger would likely be around 10A. These alone exceed or come close to exceeding the max charging current, not to mention times where the alternator and solar are charging. I feel like I must be missing something here, I suspect the actual current exerted on the battery is less but how do I know what that current is in order to figure out if it exceeds the max charging current. Sorry if this is a dumb question, I'm a bit new to this.
This is the battery I have: https://www.chromebattery.com/12v-35ah-sealed-lead-acid-sla-nut-and-bolt-connector.html
Thanks
I'm working on a fairly simple electrical circuit in my small camper and I'm confused about battery charging current limits.
The camper has 120V 15A shore cable which is connected by a breaker to 3 standard 15A wall outlets. There is also a 12V circuit powered by a 35AH AGM battery used for some LEDS and a fan. I have a 50W (I think) solar panel charging the 12V battery right now.
I would like to tie the 12V battery into my alternator, and potentially a battery charger, in order to give me some extra charge when needed. My problem is that the battery spec sheet lists the maximum charging current as 10.5A. My solar charge controller is rated for 30A, my alternator I believe is in the range of 60A, and a charger would likely be around 10A. These alone exceed or come close to exceeding the max charging current, not to mention times where the alternator and solar are charging. I feel like I must be missing something here, I suspect the actual current exerted on the battery is less but how do I know what that current is in order to figure out if it exceeds the max charging current. Sorry if this is a dumb question, I'm a bit new to this.
This is the battery I have: https://www.chromebattery.com/12v-35ah-sealed-lead-acid-sla-nut-and-bolt-connector.html
Thanks