Originally Posted by seeker333

Yes, it is voltage limited. Mine stops within 0.01v of target each of 4X measured.

It is very consistent. It charges at a relatively slow rate too, so the battery will probably not even get very warm.

Just like IJM said.

Be careful handling charger and light wiring. They are susceptible to fatigue failure, short-circuiting, overheating+insulation melting, and possibly a tiny fire.