LEAD-ACID TO LITHIUM🔋Wheelchair Battery Upgrade

Is your electric wheelchair or mobility scooter feeling heavy, slow, or constantly running out of juice? It’s time to ditch the old tech! In this video, I’m upgrading an electric wheelchair by removing two heavy, outdated 12V Lead-Acid batteries and replacing them with a custom-built, high-performance 7S6P Lithium-Ion battery pack. Switching to Lithium doesn't just save a massive amount of weight—it also provides more consistent power, faster charging, and a much longer lifespan. I'll walk you through the entire process, from the initial teardown to the final installation and testing. What’s covered in this video: The Problem: Why lead-acid batteries fail and why they are so heavy. The Build: A quick look at the 7S6P pack and the BMS (Battery Management System) used. The Swap: Removing the old 24V setup and wiring in the new Lithium power source. The Results: Weight savings and performance improvements. Technical Specs: Old Setup: 2x 12V Lead-Acid (SLA) Batteries in series (24V). New Setup: Custom 7S6P Lithium-Ion Pack. Nominal Voltage: 25.9V (29.4V Max)