A jump pack will work just fine if the mower is easy starting. I'd cut the charging circuit since the lithium batteries in them are charged differently than the original mower battery, and use the plug in charger for the jump pack though. The jump packs are also handy for other things.. usually a bright light with them and you can run a cell phone for days on one. Now go forth and mow. BTW I saw a fat ass, and I mean we're talking OBESE yesterday mowing a yard with a high dollar zero turn riding mower that wouldn't take 20 minutes with a walk behind mower. His wife is as big as he is, but he's a nice guy.