WARNING: FOLLOWING THIS POST CARRIES CERTAIN RISK - INCLUDING EXPOSURE TO CORROSIVE CHEMICALS.
DISCLAIMER:Individual results may vary.
Thought of a novel application for a smart outlet.
Use a smart outlet to cycle a battery Charger on/off in order to recharge alkaline batteries.
Was reading online and alkaline batteries CAN be theoretically recharged at least a few times BUT they carry the risk of “exploding” as the process creates heat and internal pressure and a small amount of hydrogen gas.
Usually this just means that the AA batteries will pop their tops and acid paste will be exposed.
The trick to avoiding explosion or “popping their top” is to not get them too hot by only charging them for a short period of time. Like 15mins and then giving them 10-15mins to cool down.
This is where the smart outlet comes in. It can make a dumb (always on) charger into a slightly smarter one.
I created a schedule that cycles the outlet and thus the charger on and off for 15mins at a time for 2.5hrs. That’s enough to revive a 1.3v AA back to 1.55v.
Like I said this is controversial because it isn’t recommended by the manufacturer of batteries or anyone really.
I use a cheaper $9.99 slow charger in my garage and only 2 AAs at a time.
So far I’ve revived 4 Alkaline batteries this way.
I’ve only tested AAs because my cheap charger doesn’t have connectors for AAAs.