Hi Hardware Experts,
I bought a solar rechargeable LED key chain light from eBay, a few months ago, here:
It's about half the brightness that it was months ago when I bought it, so I tried to recharge it by sitting it in direct sunlight for probably 10 hours total now, but the brightness doesn't seem to be improving at all. I confirmed this by comparing the brightness to that of a new one.
As you can see on eBay, it's very cheap, and I could easily replace it, but that is not my point. I wanted a solar rechargeable light, and I'm wondering if this device is even designed to recharge the battery or if they are advertising it falsely and the solar cell is just for show.
I dropped it a couple of days ago and it fell apart. It still works, but this allowed me to take some photos, which I have attached.
Q1. Is there an easy way to confirm whether the CR2016 lithium battery is really rechargeable?
Q2. Does the circuit look capable of recharging the battery?
Q3. Any other ideas on why it might not be recharging?