Powerful Lithium “Uranus” 72V Battery on the EBOX 2.0: The Upgrade That Changes the Bike
November 14, 2024
If you’ve been riding an EBOX 2.0 and thinking, “This thing is fun… but I want it to feel less like a toy and more like a real little electric pit bike,” a bigger battery is one of the most noticeable changes you can make.
I installed the Powerful Lithium 72V 30Ah “Uranus” battery into my EBOX 2.0 and put it through the kind of riding that actually matters: quick street hits, hills, and the kind of stop-and-go throttle work that exposes whether a setup is smooth or sketchy.
This isn’t a cosmetic mod. It fundamentally changes how the bike responds.
Installation: Not Plug-and-Play (But Totally Doable)
Let’s get this out of the way: this battery is not a drop-in upgrade for a stock EBOX 2.0.
To run 72V properly, I’m using an aftermarket controller (FarDriver 72300 setup) and a 72V-rated motor. If you’re still stock controller/stock motor, this battery isn’t the simple “swap and ride” kind of upgrade.
Fitment-wise, the battery is physically large for the EBOX frame. I did a test fit first, then made a few changes so the pack could sit safely without sharp metal edges threatening the case.
Clearance work on the peg bracket
The biggest fitment hurdle for me was the peg/brace area under the battery.
There are stock mounting slots and edges that become a problem when you’re packing a larger battery into that space. I shaved down material to create the clearance I needed and, just as important, to eliminate edges that could dig into the battery over time.
That last part is not optional in my opinion. Vibration plus sharp edges plus a tightly wedged battery is the kind of combination you don’t want to gamble with.
I used a die grinder to clean things up, then protected areas with tape where it made sense.
How I secured the battery
Once the battery was in, I secured it with two straps—one lower and one upper—so the tension felt balanced and the pack wasn’t trying to shift or rock.
I also added a wooden base/platform between the battery and my modified peg bar so the battery had a clean surface to sit on.
I threw in a couple small foam pieces as extra insurance against vibration. Maybe overkill, but I’d rather have it snug than have a heavy pack moving around inside the frame.
Charging access was straightforward for my setup—I routed the XT60 charging connector up top.
The First Ride: It Feels More “E-Bike Precise” and Less “Minibike Random”
The moment I rolled on throttle, the bike felt more responsive.
Not just “faster,” but cleaner. The response off the line was sharper, and the power delivery felt more composed—like the controller and battery were finally speaking the same language.
One weird thing I noticed immediately: it sounded quieter. I can’t claim that as a hard technical fact (noise changes can come from a lot of variables), but from the seat it felt like the power delivery smoothed out enough that the bike just sounded less stressed.
Top speed and real-world speed feel
On the speed runs, I saw the bike hit the mid-40s mph range.
More important than the number is how quickly it gets there and how stable the bike feels as it climbs. With the bigger pack, it feels like there’s less “falling on its face” as you keep asking for more.
That said, hills still expose the limitation of the current motor setup. On steeper climbs, you can feel that the system’s bottleneck isn’t the battery anymore.
Stunt riding and throttle control
The best part of this upgrade for me is that it makes the bike easier to ride hard.
With the right tune, the power can come in strong without being jerky. That matters a lot for balance-point work, tight circles, and any situation where you’re constantly modulating throttle.
The bike is also heavier now. Between the larger battery and street tires, the “super light” feel of a stock-ish EBOX changes. Personally, I’m fine with that trade because the bike feels more planted, and the extra battery capacity changes the kinds of rides I’m willing to go on.
Range Anxiety (Basically) Goes Away
This is the part that matters for EV lifestyle riding.
The stock experience can feel like you’re always doing mental math—especially if you’re trying to keep up with friends or stretch the ride beyond quick neighborhood laps.
With this battery, the entire vibe changes. I’m not staring at the battery situation the whole time. I’m just riding.
Where This Setup Is Still Limited
Here’s the honest reality: this battery is capable of far more output than the current motor can safely use.
The pack is rated for a 315A discharge rate, and while it’s nice knowing the battery isn’t the weak link, it also means the rest of the drivetrain becomes the question mark.
Right now, I’m not trying to play “how far can I push it until something cooks.” I’d rather keep it reliable and wait until there’s a motor option that can take better advantage of what this battery can deliver.
If your goal is to chase huge power numbers, this battery is ready—but you’ll need a full build plan to match.
Who This Upgrade Is For
I’d recommend this setup if:
You want your EBOX 2.0 to feel more responsive and more serious on the street
You’re tired of babying the battery on longer rides
You’re already planning to run an aftermarket controller and a proper 72V system
You don’t mind minor fabrication/fitment work to get it right
If you want truly plug-and-play, this isn’t that. But if you want the EBOX to level up in a way you feel every time you twist the throttle, it absolutely delivers.
What We Like
Noticeably more responsive throttle and stronger pull off the line
The bike feels less “limited” and more confident at speed
Much better for longer rides and group rides where range matters
With the right tune, power can be smooth and controllable (not just aggressive)
A big step toward maximizing what the EBOX 2.0 chassis can do
Things To Consider
Not plug-and-play with a stock EBOX 2.0 (you’ll need an aftermarket controller and a 72V-rated motor)
Fitment requires minor modifications around the peg bracket area
You must protect the battery from sharp edges and vibration (don’t skip this)
Added weight changes the bike’s flickability compared to the lighter stock setup
The motor becomes the limiting factor pretty quickly with a battery this capable
Final Thoughts
After living with this 72V 30Ah setup, the biggest takeaway is simple: the EBOX 2.0 finally rides like it has “real bike” energy.
It’s quicker to respond, easier to ride aggressively, and way less stressful on longer sessions because I’m not constantly thinking about whether I’ll make it back.
Yes, it takes a little work to make it fit safely. But once it’s installed properly and strapped down solid, it feels like one of the most meaningful upgrades you can do to this platform—especially if you’re building an EBOX that’s meant to be ridden hard, not just rolled around.
Links
Sully: https://instagram.com/sullyscrapes
Powerful Lithium 72v 30ah Uranus Battery: https://powerfullithium.com/products/72v-uranus-battery-for-ebox-2
Die Grinder: https://amzn.to/3UQf8Cy
Die Grinder Tips: https://amzn.to/3UMih6k
Battery Straps: https://amzn.to/4eAbeoa
EBOX 2.0: https://eboxelectric.com/ebox-2-0-electric-pit-bike.html
Econic Cycles Far Driver 72300 Controller (use promo code RUNPLAYBACK5 for a 5% discount): https://econiccycles.com/products/fardriver-sinewave-controller-nd72300-w-bluetooth
Econic Cycles Pre Wire Kit (use promo code RUNPLAYBACK5 for a 5% discount): https://econiccycles.com/products/copy-controller-essentials-prewired-fardriver-key-w-voltmeter-twist-throttle-3-speed
Pro Taper Grips: https://amzn.to/3ygAuRu
Pitbike Handlebars: https://amzn.to/3MtuDeW
LED Bike Light: https://amzn.to/46CFCft
Bar Mirror: https://amzn.to/4daQJyB
Bell Super 3R MIPS Bike Helmet: https://amzn.to/3TJ1vTR
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Denlix Military Sling Bag: https://amzn.to/3LTKN2c
Lamicall Bike Phone Mount: https://amzn.to/3LXmD6O
Onvian Wireless Bike Alarm: https://amzn.to/42KUgyE
RunPlayBack Merch: http://shop.runplayback.com/