So I have a solar security light that has 24 surface mount LED's on it. It operates on a PIR and is only on for a small amount of time before it turns off. It seems to get plenty of juice from the solar panel even in winter (ie its never dim).

As far as I can tell the LED's are wired in series.

Now I just happen to have a second one of these that is damaged but the LED panel is fine (pet vs light; pet = 1 & light = 0).

Anyway, my question is if I wire the second panel into the working light in parallel, is the only downside increased battery drain?

I'm a bit rusty on my old DC electrics...