Without a load they rotate at approximately 5,000 rpm. Each motor is rated according to the specifications given in Tables 1 and 2 . Up to forty amps can be generated. Unique torque sensing mount adjusts automatically for maximum traction and efficiency. The roller, made of a ceramic composite for long life and superior gripping, works well even when wet.
Battery type is starved electrolytes dry cell.
Maintenance Free, Lead-Calcium Grid, Usable and rechargeable in any position. High discharge rate capacity. Deep discharge recovery. No memory effect. There are tons of them out there.