The Low Cost BMS is an open-source design for a battery management system. You can build this BMS yourself to monitor cells within your homemade battery. It will take you some time to do, and you may have to learn a bit along the way, but it will be cheap!
Why Brumby 2.0 was a Lead Sled
This is the story of how I chose my first battery pack for the electric Brumby.
Electric Conversions – Donor Vehicle
So you’re thinking of converting a vehicle to electric. What’s the best donor vehicle?
How to convert a vehicle to electric in 312 easy steps
Introduction to the Brumby blog