TLDR - ONYX RCR Battery Testing

If The Fast and the Furious had a scene where Brian O’Conner just clicked a link to order parts, the whole movie would be ruined-I’d switch to Spike TV immediately. So let’s be clear: getting the good stuff done right takes effort, real connections, and jumping through some hoops.


ONYX RCR Battery Testing

Credit: Thon, Elliot, and ONYX Community

All battery tests have been posted in the ONYX AF Facebook group, complete with BMS screen recordings, Dragy logs, GoPro footage, and thermal imaging. Voltage sag, speed, temps-every detail recorded and shared.

ONYX Performance Modes

A true performance setup pairs a bike with a battery 2x to 3x more powerful than needed. Why? Because running at 35-50% capacity keeps it cool, extends lifespan, reduces sag, and delivers stronger performance with pure, unfiltered speed. With the right setup, a 72V battery at 100A constant output can hit 70 mph.


Battery Performance Comparison

A 50Ah Samsung 50S (250A constant output) and a 50Ah Molicel P50B (340A constant output) on the same ONYX with a Fardriver set to 200A would feel like night and day. The Samsung 50S would sag hard, with 30% more weakness below 72V. Sure, both batteries technically handle 200A, but with the 50S’s 25A cell rating vs. the P50B’s 45A rating, the difference in power delivery isn’t just numbers-it’s something you’ll feel.

Model Commute Adventure Race Drag
Samsung 50S
Molicel P50B

Fardriver Battery Safety

For the love of electrons, if you’ve upgraded to a Fardriver controller, don’t program the controller to demand more than the battery can actually handle, especially for an ONYX 41Ah battery.


Amorge P45B Cheetah Mode

The Amorge Molicel P45B battery test went down on Cheetah Mode, the beastly successor to Sicko Mode-cranking up from 100A to 130A DC line amps for that extra punch. But here’s the kicker: the P45B delivers a whopping 315A DC line amps, flexing way beyond what Cheetah Mode can even pull.

P45B Test Ride: September 5, 2024

On a perfect 75°F sunny Thursday, September 5, 2024, I let the Amorge 40Ah Molicel P45B rip on a full-throttle 10.2-mile test ride up the West Side Highway. It devoured the road effortlessly, with just 3.4V of sag while holding steady at 60 mph. Power delivery? Instant. Performance? Relentless. By the time I wrapped up, my rear tire had heated up from 28psi to 33psi-a sign of a ride well sent.

regular

P45B Test Results

Field Start End
Distance 10.2 Miles
Outdoor Temp 77°F
Voltage 82v 79v
Voltage Sag 78.6v
Line Amps 134a
Voltage Difference 0.003 0.003
Voltage Discharge Difference 0.043
Controller Temp 77°F 105°F
Motor Temp 77°F 118°F
Battery Temp 77°F 80°F

ONYX 41AH HD Cheetah Mode

41AH Test Ride: September 1, 2024

Sunday, September 1, 2024, was a perfect 75°F and sunny-a welcome break after a hot summer and the ideal day to take Cheetah Mode out for a test run with the ONYX 41Ah battery. Cheetah Mode had been flawless the past few days, and let me tell you-it’s fun as hell. Ripping 60 mph on the 41Ah battery felt incredible, especially knowing all the care put into it over the years paid off. A 3-year-old battery, loaded with miles, still performing like it’s brand new? Now that’s an achievement.

regular

41AH Test Results

Field Start End
Distance 9.4 Miles
Outdoor Temp 81°F
Voltage 83v 79v
Voltage Sag 72.7v
Line Amps 102a
Voltage Difference 0.007 0.008
Voltage Discharge Difference 0.071
Controller Temp 81°F 107°F
Motor Temp 81°F 120°F
Battery Temp 81°F 92°F