I'm probably the last person in the state with a cordless mower, but I
like it because of the low noise and lack gas, fumes, lots of parts
that can break etc. I've always been able to do our entire 1/4 acre
lot on one charge, provided the grass is dry, but I admit it tends to
bog down near the end, and more so recently. (It's kinda heavy too.)
Bought it in '97 --a Toro Carefree 24(v).
I have just barely survival knowledge things electric so I'm seeking
If I could get a 20% longer run time I'd be happy. I took off the lid
of the mower. There are 2 12V batteries wired in series driving a 24V
motor. There's a empty slot for one more 12V battery. The label on
the batteries read: "Yuasa sealed rechargable lead-acid battery ylm
18-12 12v 17.2Ah voltage regulation 14.4-15.0V initial current 4.3A
I thought I would buy and install an extra 12V battery of similar
amp/hours and form factor. (Found one at gotbatteries.com.) I'll wire
the new one in parallel with the original two (keeping those wired in
I can't find much out about the internal charger (You plug this mower
into a 120V socket to recharge.), but the charger is still going to
see one 24V battery anyway, right?
Do you think my idea will work or am I missing something?
PS. I called Toro (who no longer makes cordless mowers) and they
"didn't recommend" my idea, but I believe they're just being legally
careful. Also I'm gonna strap 15 lbs of barbell plates to the mower
to test if I can tolerate
the extra weight!