Popular Bike Shops
Join the Cycling Forums on Strava
Australian Cycling Forums on Strava
Latest Reviews and Articles
Will your next bike be Intelligent? ABS and Smart Bike Tech
Vitus Vitesse EVO Disc Review – Speed Machine indeed!
- Posts: 1
- Joined: Wed Jan 20, 2016 6:36 pm
Has anyone made their own battery pack to suit their motors voltage?
I am considering making my own 48volt battery pack. I will be using 4 x 12volt li-ion 20 mah rechargeable batteries. I would the connect the batteries in a series to obtain my voltage. Then once its time to recharge them i would disconnect them and recharge then one at a time.
Does this sound doable?
- Posts: 1155
- Joined: Sun Jan 18, 2015 9:00 pm
Also, you didn't really specify the battery, but a combination of "12v" and "Lithium ion" makes me think you might be using particularly low-current capability batteries, that will not put out enough for your bicycle. I won't even ask the wattage of the wheel if it's 48v, but I'm assuming that you're going for around 10A Minimum? Many 12v lithiums ( except the ones in car starters ) won't put out that kind of current and often have smaller wires intended for lower currents - usually around 2A.
So please be careful, as there is a little engineering to go into the mix before you start.
Anyway, the best forums for that kind of work if you want to read them are the endless-sphere forums on electric bicycles - That's where all the homebrew batteries show up -
But there's also a lot of knowledge here if you want to post more information and solicit ideas -
- Posts: 1699
- Joined: Tue Sep 01, 2009 12:21 am
- Location: Perth, Western Australia
You need to be present when charging in case of fire so only doing it once a day/night it would be as convenient as any other setup.
There are also smaller lighter individual chargers that are not programmable but auto balance 100% charge, much cheaper so can run one per battery to charge 2 at the same time.
- General Australian Cycling Topics
- Info / announcements
- Buying a bike / parts
- General Cycling Discussion
- The Bike Shed
- Cycling Health
- Cycling Safety and Advocacy
- Women's Cycling
- Bike & Gear Reviews
- Cycling Trade
- Stolen Bikes
- Bicycle FAQs
- Serious Biking
- Audax / Randonneuring
- Retro biking
- Fixed Gear/ Single Speed
- Electric Bicycles
- Dragsters / Lowriders / Cruisers
- Children's Bikes
- Road Racing
- Road Biking
- Time Trial
- International and National Tours and Events
- Cycle Touring
- Touring Australia
- Touring Overseas
- Touring Bikes and Equipment
- Western Australia
- New South Wales
- South Australia
- Northern Territory
- Country & Regional
- The Market Place
- Member to Member Bike and Gear Sales
- Want to Buy, Group Buy, Swap
- My Bikes or Gear Elsewhere
- Cycling Brands
- Malvern Star
- Custom Builders
- Generic Carbon
Who is online
Users browsing this forum: No registered users
About the Australian Cycling Forums
The largest cycling discussion forum in Australia for all things bike; from new riders to seasoned bike nuts, the Australian Cycling Forums are a welcoming community where you can ask questions and talk about the type of bikes and cycling topics you like.