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40A Universal Dual Battery Balancer Kit (Bullet, T-plug, XT60)

Regular price $70.00 USD
Regular price Sale price $70.00 USD
Sale Sold out

Want to increase the distance traveled on your electric bike? This plug and play kit provides all the components needed to add a second battery without the need for soldering or cutting any wires.

The plug and play kit includes a 40A dual battery discharge balancer to balance (use higher charged battery first) and uniformly discharge voltage of both batteries without the requirements of voltage matching for hard-wired parallel connections. The kit also includes two 400MM (15.75in) XT60 (M-F) (14AWG) extension cables with braided wraps, two bullet to XT60 adapters (M, F) and two T-plug to XT60 Adapters (M, F).

Best of all, the wiring and connectors are all black in color. The black color makes it easy to visually integrate your second battery wiring with the existing cabling and wiring for your electric folding bike, even if it’s wired outside the e-bike body.

Batteries will need to be charged independently. Second Battery not included. 

Disclaimer: These kits are designed for factory specifications and components.

Warranty materials for international sales do not include cost of shipping


Customer Reviews

Based on 8 reviews
Matt N
Works awesome on aventure gen 1

Works great and super easy to install on my aventure version 1 step through. I bought the 10ah battery that was recommended and mounted on my rear luggage rack. I went from 28miles on the single battery to 45 miles with 2 batteries. Now I can ride from my house in Littleton, Co to downtown Denver and back. It’s awesome

Lee Hart

This thing is awesome, about 5 mins to get wires situated and just works as advertised. Great kit gets me 2 times the mileage. Thanks


Easy installation,
Works flawlessly at a great price

Nice compact kit!

So first, I’d like to thank Matt for his patience, as I’m learning how to do upgrades and repairs on my own. Lol. Quite a few back-and-forth emails, but he was very cool about it and helped me out. so it took me a little bit to review of a few videos due to the different connectors on my bike (vitilian i7 pro) but after that it was super easy to install considering my original battery is inside the frame of the bike. Lucky for me the controller area was big enough for the wire and for the 40 amp balancer. Just one wire running out to the battery in my bike rack pack. And all set everything works great no issues. It’s a nice kit plus you’re buying from a reputable business and not rolling the dice on something from overseas. The small balancer is awesome and fits in small places welll. Thanks again! Now let’s see how far I can go on 1680ah of battery!! Hahaha.

Ben Chapel
Even out of country, service is excellent

Definitely might go-to business in the USA for E-bike accessories and project materials