Search found 2 matches

by Magnets
Mon Mar 14, 2016 1:51 pm
Forum: General Discussion
Topic: Solar panel charger with auto shutoff. Solar LED drivers.
Replies: 54
Views: 129623

Re: Solar panel charger with auto shutoff. Solar LED drivers.

Interesting, thanks. I recall reading somewhere that the QX5252 terminates charge when the cell reaches 1.4v but in my case that isn't happening. I modified a store bought light with a 47uH inductor, 5v 1.3w panel and a mini DC buck set to output 2v and 1xAAA nimh. In full sun it charges the battery...
by Magnets
Sun Mar 13, 2016 5:56 pm
Forum: General Discussion
Topic: Solar panel charger with auto shutoff. Solar LED drivers.
Replies: 54
Views: 129623

Re: Solar panel charger with auto shutoff. Solar LED drivers.

How do the QX5252 operate with multiple AA batteries?

You just need to make sure the solar voltage is above battery for it to charge? I assume it still tries to run down to 0.9v before cutting out? Do you need to manually set the solar voltage to effectively be your termination voltage?