LockH
1 PW
OK. NOT the theologian (I refer to him as "Padre"... hehe) but his LAWNMOWER.
... Watt is a Yardwerks bettery-electric "24V, 20Ah, 240 W"... instruction manual here:
https://www.manualslib.com/manual/820725/Yardworks-060-1753-8.html
... so a sealed Lead acid battery [cough cough]
My mission. To STUFF his battery compartment with lithium. (Meaning the mower...)
From their manual "USE ONLY A YARDWORKS REPLACEMENT BATTERY (060-2110-2)" [More coughing here.]
Ya can still buy these... things from a local Crappy Tire:
http://www.canadiantire.ca/en/pdp/lawn-mower-battery-for-60-1753-24v-0602110p.html
MY thought... given that "weight not a concern" is to just go with LiFePO4 cells.
Currently (Ebiker joke) can shop local:
https://www.goldenmotor.ca/products/12AH-LiFePO4-Cell.html
... for "just" 12Ah cells ("Buy in bulk and save!") watt I suspect is STILL "better" than a "20Ah"-rated lead battery. (Found on Wiki: "the gravimetric energy density of LiFePO4 battery is 130Wh/kg, four times higher than that of Lead-acid battery, 35Wh/kg".)
Think so, maybe? Suspect the Li will be slightly less "ambient temps" sensitive also. Lessee... One LiFePO4 cell "3.2V as its nominal voltage during discharge". So. Say 8 cells wired up in series. Right now "CAD 54.00"... at eight cells $432 Cdn. Round to say $500 (including Canada and Ontario "HST").
Sound like a plan? LiFePO4 cells with a cycle life of >2,000 (assuming full discharges each time...)
Watt am I missing? (Remember you LiPO fans, object here is for pack to be "bullet-proof". )
... Watt is a Yardwerks bettery-electric "24V, 20Ah, 240 W"... instruction manual here:
https://www.manualslib.com/manual/820725/Yardworks-060-1753-8.html
... so a sealed Lead acid battery [cough cough]
My mission. To STUFF his battery compartment with lithium. (Meaning the mower...)
From their manual "USE ONLY A YARDWORKS REPLACEMENT BATTERY (060-2110-2)" [More coughing here.]
Ya can still buy these... things from a local Crappy Tire:
http://www.canadiantire.ca/en/pdp/lawn-mower-battery-for-60-1753-24v-0602110p.html
MY thought... given that "weight not a concern" is to just go with LiFePO4 cells.
Currently (Ebiker joke) can shop local:
https://www.goldenmotor.ca/products/12AH-LiFePO4-Cell.html
... for "just" 12Ah cells ("Buy in bulk and save!") watt I suspect is STILL "better" than a "20Ah"-rated lead battery. (Found on Wiki: "the gravimetric energy density of LiFePO4 battery is 130Wh/kg, four times higher than that of Lead-acid battery, 35Wh/kg".)
Think so, maybe? Suspect the Li will be slightly less "ambient temps" sensitive also. Lessee... One LiFePO4 cell "3.2V as its nominal voltage during discharge". So. Say 8 cells wired up in series. Right now "CAD 54.00"... at eight cells $432 Cdn. Round to say $500 (including Canada and Ontario "HST").
Sound like a plan? LiFePO4 cells with a cycle life of >2,000 (assuming full discharges each time...)
Watt am I missing? (Remember you LiPO fans, object here is for pack to be "bullet-proof". )