Solar Charging help (banking up two chargers to one battery)

[Soogs]

Just a quick one if anyone knows anything about solar charging...

If I want to use two solar chargers to top up a battery do I simply just wire then to the battery in the same manner? (+) to (+) and (-) to (-) ?

The bigger picture is I've got a lot of kits im building and will be setting up and I want to power them off a 12v lead acid battery but from what someone else has worked out for me is that the 1.5watt charger prob wont do a good enough job to keep it from goin flat.

Any help would be great.

Thanks,
Soogs~

 

[Jotun]

Not sure how you'd connect it, but it will make very little difference. Assuming the charger output is 12V, the maximum current would be 0.125A. I believe car batteries hold around 50aH, so at full output from your solar cell, would take 400 hours to charge. (Based on no losses, and the correct voltage, and assuming you don't need any other components to charge the battery). Of course if you aren't using a car battery, and use something with significantly lower capacity, then it may be more worth while

 

[Soogs]

Not sure how you'd connect it, but it will make very little difference. Assuming the charger output is 12V, the maximum current would be 0.125A. I believe car batteries hold around 50aH, so at full output from your solar cell, would take 400 hours to charge. (Based on no losses, and the correct voltage, and assuming you don't need any other components to charge the battery). Of course if you aren't using a car battery, and use something with significantly lower capacity, then it may be more worth while

i didnt know car batteries had that much ampage lol... but yeah its only gonna be a small 1.2amp for the minute... or posibly 2x6volt 4.6amp batteries dependant on how the rate of charge compares to discharge.

thanks