The EXECYC 48V 25Ah ebike battery packs a lot of capacity into a small water bottle shaped design. This battery has 1200 watt-hours of power and features LG 21700 cells, making it perfect for riders wanting true range without having to carry a large triangle pack.
As a 48 volt battery this has 25 amp-hours of capacity which translates to a whopping 1200Wh. This should give you ample time on the road with a 750W hub motor, or allow a 500W commuter to eat away at miles without worrying when its next recharge is coming.
Inside the battery are LG 21700 cells, which is always a plus. Most lower priced batteries don't utilize name brand cell products like LG. So the fact that EXECYC did is great news. They claim their battery can last for well over 1000 charge/discharge cycles before experiencing significant loss of capacity. After 800 cycles they claim the battery will still retain at least 80 percent of its original capacity. Cell quality is what matters most when shopping for a new ebike battery, and LG 21700 is generally considered to have fairly good cycle life as well as consistent discharge characteristics.
That cell choice also tends to matter more in cold weather than most riders expect. Cheaper generic 18650 cells can lose a noticeable chunk of usable capacity once temperatures drop below freezing, while name-brand cells like the LG 21700 hold their voltage curve more consistently. If you're riding through a real winter and not just a mild one, that difference shows up as fewer surprises on the last few miles home.
The case size of the EXECYC ebike battery is approximately 368 x 96 x 155 mm and weighs approximately 6 kg (or 13.2 pounds). This isn't ultra-lightweight, but considering this battery contains 1200 Whs it's relatively light weight. The shape of this ebike battery is a water-bottle style pack commonly referred to as a Hailong or downtube battery, and attaches via a standard bottle-cage bracket using the same type of bracket used to attach a water bottle. The case has a 5-pin connector already installed at the bottom of the battery, allowing for easy connection to most controllers that support the same connector.
BMS, Safety, and Design Features
The ebike battery includes a 50-Amp Smart Battery Management System (BMS), which is capable of handling most types of setups. On a 48-Volt ebike battery, 50 Amps translates to approximately 2400 Watts. This provides ample headroom for most ebikes equipped with motors rated anywhere from 250-Watt to 1500-Watts.
The BMS also handles over-charge protection, over-discharge protection, short-circuit protection, over-temperature protection, and over-current protection. Most ebikes with motors no larger than 1000W won't require even close to 50 Amps during normal operation.
The battery itself has an IP65 rating for both dust and water resistance. This makes it suitable for ebikers who typically ride in inclement weather conditions such as rain and snow.
What Amazon Reviewers Are Saying
EXECYC's product currently averages 4.0 stars based upon the reviews provided by consumers. As expected, the majority of reviewers complimented this ebike battery on its range capabilities. Most reviewers felt that getting a full 25Ah at this price point was exceptional. Also many reviewers praised the build quality of this ebike battery.
Several buyers specifically mentioned that the use of LG cells was one reason why they purchased this ebike battery.
Range and Real-World Performance
Your actual ebike range may vary depending on your specific configuration. For reference here are some approximate ranges you can expect when using this ebike battery:
- Light pedal assist: 40-55 miles
- Moderate pedal assist: 28-40 miles
- Heavy throttle: 18-28 miles
- Aggressive riding or hills: 14-20 miles
The estimates listed above were made assuming a rider weighing approximately 180 lbs on primarily flat terrain. Riders weighing significantly more or riding uphill frequently will reduce these estimates accordingly.
In addition to providing a significant increase in potential ebike range, this ebike battery will also provide a reduced number of charges needed per day. If you ride approximately 10 miles each way to work using moderate pedal assistance, you would likely only need to recharge your ebike every two to three days.
The ebike battery connects via an XT60 connector for discharging and a 5-pin connector for charging directly to the BMS.
Who Is This Battery For?
When it comes down to it, the EXECYC 48V 25Ah is a solid choice for riders who need a lot of capacity in a manageable form factor. The LG cells and the 50A BMS give it a combination of quality and capability you don't always see at this price point. Whether you're commuting long distances or just want a battery that doesn't need charging every single night, this pack is worth putting on your short list. You can check the current price on Amazon to see how it compares today.
This ebike battery would make sense for riders that need 30+ miles of real range, riders utilizing a 500W-1000W hub motor, riders seeking LG cells at non-premium prices, and/or converting bikes to ebikes where a universal mount is required.
Not ideal for riders who seek an extremely lightweight pack for shorter rides, higher powered builds over 1500W where the 50 Amp BMS limit could become restrictive, or any riders that need a triangle or rear rack style form factor.
Frequently Asked Questions
Does this battery work with my 48V controller?
Yes, if your controller runs on 48V nominal and draws under 50A continuous. Most 500W-1000W controllers fall well within that range.
What motors are compatible?
The battery supports motors from 250W to 1500W. The sweet spot is 500W-1000W hub motors.
Are these really LG 21700 cells?
EXECYC claims LG 21700 cells and the review data backs it up. Buyers who've opened similar packs from this brand have confirmed the cell brand aligns with what's advertised.
Does it include a charger?
Yes, a standard 54.6V 2A charger is included. A full charge from empty takes around 12-13 hours due to the 25Ah capacity.
What connector does it use?
XT60 for discharge and a 5-pin connector for charging. If your controller uses a different connector, you may need to swap or use an adapter.
How do I mount this on my bike?
Install the included mounting plate on your frame's bottle cage mounts, slide the battery onto the plate, and lock it. It uses a standard 5-pin base compatible with many Hailong-style mounts.
If you need more capacity, check out the ebike battery comparison table to see how the EXECYC stacks up against other 48V options. And check current pricing for the EXECYC 48V 25Ah ebike battery on Amazon to see where it sits today. You can also browse the full list of battery reviews for more options.