I want to make some little solar charged battery packs to run my game cameras year round without having to replace expensive alkaline batteries several times a year. I have already built two prototypes, but I am having problems keeping them charged, because of a stupid mistake on my part. I bought 6V panels to charge 6V batteries. I now realize I need higher voltage panels. My question is how much higher?
My battery packs have a 6V 1.3-Ah lead acid batteries. Draw is minimal and the battery could last a month or more on a single charge without a panel. I need the batteries to stay up around 6V for the cameras to function properly. My worry is that since these units will have no form of charge controller, I need a panel that is larger enough to keep the battery up, but not overcharge it.
I am looking at a couple mini panels for this project. Maybe someone could tell what they think would be best for this situation. Which one of these do you think is best. A 9V 2W 222mA mini panel or a 12V 0.6W 51mA mini panel?
My battery packs have a 6V 1.3-Ah lead acid batteries. Draw is minimal and the battery could last a month or more on a single charge without a panel. I need the batteries to stay up around 6V for the cameras to function properly. My worry is that since these units will have no form of charge controller, I need a panel that is larger enough to keep the battery up, but not overcharge it.
I am looking at a couple mini panels for this project. Maybe someone could tell what they think would be best for this situation. Which one of these do you think is best. A 9V 2W 222mA mini panel or a 12V 0.6W 51mA mini panel?
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