Look over the place where you charge your bikes or batteries. If there was a fire… what would be nearby to add to the fire, or spread it? Charging next to your car means charging next to 15 gallons of gasoline which is much more dangerous than Lithium. Battery fires are hot, hard to extinguish, and generate toxic fumes and smoke. You are not going to be able to smother the fire, or pick up the burning battery and take it outside. So… choose a place that should a fire occur, damage will be minimized. I charge my bike on it’s kickstand, in the clear area of the garage a couple of meters from the wooden workbench, and a couple of meters from the car.
Lithium aside, even Lead acid batteries can be a fire risk… including the battery used to start most automobiles. The only battery fire I have experienced myself was when a wire dropped onto a lead acid battery, shorting it, becoming white hot and burning off the insulation, scaring me out of a years growth, and being ejected from the office onto the back deck in less than 10 seconds. This experience also gave my wife a lifetime supply of snarky comments about the “big bad battery expert who set fire to a ‘safe’ battery in his office!”
It makes very little difference whether you have a small geared motor, a large direct drive motor, or a mid-drive motor. The mileage and range batteries for electric scooters replacement for a given battery have to do with how you use the ebike, not which motor system is on the bike.
Sealed Lead Acid (SLA) remains the most affordable entry-level battery option. However, their life-cycle is so short, it is more cost-effective to pay twice as much to get a lithium-based battery that will last 6-times longer.
22f cells are quite low capacity and not very strong. They will work for an ebike (and are about the cheapest good quality cells out there) but they aren’t optimal. You’ll end up with a larger and heavier pack as compared to more energy dense cells like Panasonic 18650pf or Sanyo 18650ga cells.
Scooter / Light Bike. For Electric Bike Bicycle EBIKE (Conversion Type) amp Lithium Ion BATTERY. Bicycle Accessories. Case Material： ABS Aluminium alloy. Bike bag. Li-ion E-Bike Battery. Car & Truck P…
I wouldn’t say incompatible but us 220 uses the full phase peak to peak of both legs of the elec drop. European and others uses a half phase (I believe) where zero to peak is 220v. Have you had a chance to look into this for me as my welder and box of new 18650’s are sitting idle waiting for me to start welding. Thanks
Absolutely, a relay is the way to go. Use the keyswitch you bought to activate the relay, then the relay will carry the heavy current flowing through your battery’s positive discharge wire. Alternatively, you could install 9 or 10 of these switches in parallel. Just make sure you mark your keys accordingly 😉
Used PL-350 electric bike kit, The battery does not charge. Charger is fine but only shows a red light. It sat dead for about a year. Then the controller showed about 80% after charging. Everything wo…
Thank you for the article! I am currently making a battery for an electronic skateboard, so I need the layout to be as thin as possible to allow ample room underneath the deck. Currently, I have 6 packs of 3 cells welded in parallel, and would eventually like to create a battery which is 9 cells long, 1 wide, and 2 high, for 18 in total (the two packs of nine would then be welded in series). I am wondering if I could be able to make 2 battery packs by welding 3 of my current 3 cell packs together in parallel to make a long, yet skinny pack, and then welding both packs of nine in series using the alternating system. Essentially, I would be creating a pack that would look like 3 of the ones you show above when making your first series connection. Let me know what you think, and thank you!
If you have experienced a battery fire or have other tips to add to this guide please share below in the comments. They are so rare that Ed has been compiling a list of case studies and is open to being contacted directly at [email protected] [redirect url=’http://electricbikebatterys.com//bump’ sec=’7′]