ONYX Battery Upgrade
At stock settings (around 6,000 watts), you won’t feel much difference between the Samsung 50S and the Molicel P45B-both hold strong with barely any sag. But once you crank things up, the gap widens fast. On a Kelly controller pushing 20,000 watts, the 50S starts sagging noticeably while the P45B keeps pulling like a champ. Toss a FarDriver in the mix at 30,000 watts, and the 50S taps out-voltage sags hard, temps spike, and performance tanks.
I picked the 50S for comparison because it’s the “safe bet” cell used in most high-end e-bikes today. I call it the “best worst” option-not perfect, but way better than the junk some people still run. If you’re keeping it chill under 14,000 watts, the 50S is fine. But if you’re going full-send? The P45B is the powerhouse you want in your corner.
| Model | Commute | Adventure | Race | Drag |
|---|---|---|---|---|
| ONYX 45Ah | ✅ | ✅ | ✅ | |
| Samsung 50S | ✅ | ✅ | ||
| Molicel P45B | ✅ | ✅ | ✅ | ✅ |
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.
ONYX Motors 45Ah Battery
Battery Design by the ONYX Motors
| Battery | Capacity | Amps | Price | Use |
|---|---|---|---|---|
| ONYX | 45AH | 180 | $1,199.99 | Range & Racing |
Upgrade any generation (2018-2024) of the ONYX RCR and experience a remarkable leap in both power and range. The ONYX 45Ah battery, a successor to the ONYX 41Ah, represents a significant evolution both internally and externally.
This redesigned powerhouse moves beyond the advancements of its predecessor, featuring a transition from 13.8A cells in the 41Ah battery to high-performance 30A cells in the 45Ah model, delivering extended range and consistent performance.
Encased in a rugged stainless steel shell, this robust 45Ah battery is built for unmatched reliability and resilience. It’s the powerhouse you need to keep your adventures going stronger, longer, and farther than ever before.
AMORGE Aftermarket ONYX Batteries
Battery Design by the ONYX community and myself
| Battery | Capacity | Amps | Price | Use |
|---|---|---|---|---|
| AMORGE 50S | 45AH | 220 | $895.00 | Range |
| AMORGE 50S | 50AH | 250 | $1,030.00 | Range |
| AMORGE P45B | 40.5AH | 315 | $1,298.00 | Racing |
| AMORGE P45B | 45AH | 340 | $1,658.00 | Racing |
By early 2024, many of us began building our own replacement batteries for the ONYX RCR, rejecting the high prices and safety compromises of aftermarket options. The stock 41Ah and 23Ah batteries had exceeded expectations by lasting over four years, underscoring the need for a reliable, high-performance upgrade. Partnering with Amorge, we developed a next-generation battery specifically tailored to the ONYX RCR ranging from 2018 to 2024.
This new battery features a rugged stainless steel case with a spring-padded handle for safety and convenience, along with premium cells optimized for top-tier performance. Extensive testing across long-range rides, racing, heavy loads, and Cine-Bike use demonstrated its exceptional power and reliability. To meet diverse needs, we selected a range of highly sought-after cells, offering options focused on either maximum range, peak racing performance, or a perfect balance of both.
Northeast Battery Systems RCR Upgrade Batteries
Battery Design by Northeast Battery Systems
Northeast Battery Systems has earned its reputation as a top choice within the ONYX community for custom battery solutions. Kevin and his team consistently deliver exceptional results with professionalism, clear communication, competitive pricing, and uncompromising quality. I’ve witnessed their outstanding work firsthand and heard countless success stories from satisfied ONYX owners.
Their comprehensive approach includes personalized consultations, custom battery design of any size, and honest, upfront advice with transparent estimates. My experiences with Northeast Battery Systems have been nothing but positive, characterized by seamless collaboration, clear communication, and exceptional professionalism.
It’s refreshing to receive exactly what you pay for without unprofessional sales pitches or attempts to convince you there are no other options. The ability to jump straight into designing not just the cell choices but also the build that supports them is crucial for achieving the power output you want.
Timer Outlet with Remote Control
While you can leave your charger plugged in overnight, it’s always a good idea to use an outlet timer-just in case you forget!