I have built an R/C Lawnmower. I call it the Honey Badger, because it tears stuff up (that's a good thing). Well, I used used batteries to get the project going and now it's long past time to get the Honey Badger going again.
The Honey Badger is built on an electric wheelchair frame, and originally used wheelchair deepcycle batteries. U1 if I recall. There are 4 of them wired in 2 banks in series and parallel to give 24V for the 24V motors.
Going down to the used wheelchair parts place is about an hour drive and requires a weekend visit and will get me used batteries of unknown condition.
Contrast that with Harbor Freight, which is 20 minutes away and has solar batteries the same physical dimensions and comparable (?) electrical characteristics. I think with coupons, tax, and after playing the game, I can get a battery for ~$50, about the same price as a used U1.
I found that Amazon also has U1 batteries, and they can be had for ~\$120 for 2 with shipping.
Batteries plus will sell me some deepcycle auto batteries of greater Ah capacity for ~$100 each.
Gross for each solution winds up being around the same: ~\$240 - ~\$300.
Is there a difference in technology between a "solar battery" and a "wheelchair battery"? Is that difference substantial? Given that I'm pretty rough with this thing, is any particular technology any better suited to these tasks? Is there a benefit or drawback to using an automotive battery?
I have the charger from the original wheelchair and if I recall, it's good for the capacity and has room to spare. I think it can put out 5 amps.