adlai

I have an EGO lawnmower. Has anyone figured out how to connect the battery to an ebike system? It would be removable and the cells from a reputable manufacturer.

tds101 

Look through this section, as this has already been discussed/done.

2old

There was an individual in San Diego selling a system (endless sphere) that used tool cells. It didn't seem to generate much interest even though FME with tools those are excellent cells.

Doc_Wui

I think 56V EGO batteries are popular for DIY ebikes. Get a blown out charger and re-use the docking part on the bike. One thing about a name brand tool battery is that it's well made and less likely to explode/burn like a cheaply made no name ebike batery.

I had a 40V Ryobi weedhacker pack, only 2.5AH, but it could run my ebike for 10 miles. Not that great, and another new one was expensive. I already had ebike batteries so it was for grins. Only worth doing if you have easy access to the batteries. Not worth buying them new, as other batteries are less expensive.

For example, used scooter batteries from defunct rental fleets are often quite well made, and use quality cells. There are resellers that sold them, and I had a couple of batteries that only cost me $25 each, but had LG and Pansonic cells and better built internally than any of my dedicated store bought ebike batteries. I used them on my DIY ebikes for a while.

Leisesturm

Part of what you pay for with a quality e-bike battery is an obsessive attention to weight reduction. Tool packs, unless modified, will have heavy case and attachment hardware and anyone asking the question probably does not plan on doing the work to get them stripped down enough to use on an e-bike.