Thinking about running a battery you built yourself, or one from a battery builder, in your Fliteboard? Here is what to expect.
Will it work?
In the current Fliteboard firmware there is no known block or restriction on using a third-party battery. Firmware is controlled by Fliteboard, and a future update could change this.
When a new firmware update comes out, do not install it right away. Wait until we confirm on our FAQ that the update does not block third-party batteries.
How much current does it need to handle?
The Flitebox can pull up to 120 amps before a cutout occurs. Your cells and BMS need to be able to handle at least 120 amps. We like the Daly Active 150A BMS because of its form factor and features.
The battery percentage on your remote
It will not be perfect while you are riding. The board estimates the percentage from a mix of battery voltage and current, so with an aftermarket battery the reading can drift while you ride. For an accurate reading, stop for a few seconds and let the battery rest. The percentage will update to the correct number.
The low voltage ramp down, where the gear levels slowly decrease at the end of the charge, still works like normal, as this is a purely voltage driven value.
This is about to be fixed. I am very close to finishing The Bridge, a device that makes an aftermarket battery look exactly like a stock battery to the Flitebox, so the percentage reads accurately at all times. If you use a Daly BMS in an aftermarket battery and want to beta test it, email charlie@posterduckcustoms.com.
Turning it on and off
The stock Flitecell uses a magnet inside the lid that triggers a reed switch inside the battery. For simplicity’s sake, I chose to stay away from that design. Helium uses the key function on the Daly BMS instead, with a latching push button or toggle switch (not a momentary button) on the front of the battery.
Your warranty
How Fliteboard treats modified boards and batteries under its warranty is up to Fliteboard, so check their terms before you start.
Ready to build? Start with the Helium Enclosure and read our Battery Safety page.
Posterduck Customs LLC is not affiliated with or endorsed by Fliteboard. Fliteboard, Flitecell and Flitebox are trademarks of their owner and are used here only to describe compatibility.