With a capacity of 14Ah, this is one of the less commonly available points in terms of battery size. The math is simple though: multiply 48V by 14Ah and you get 672 watt-hours. The Jafecokaer 48V 14Ah battery falls somewhere in the middle of the two most common sizes, with a 12Ah pack at 576Wh and a 15Ah pack at 720Wh on either side. It runs a 30A BMS with motor compatibility ranging from 500W to 1200W. This higher end of the motor range is much greater than many comparable packs in this category, which makes it worth a look for 1000W-plus builds.
Although this is a newer listing on Amazon with very little review history, the specifications seem consistent and can be verified. The majority of the information below is based on those stated specs.
Specs Overview
At 672Wh and 48V, the capacity of this pack should be sufficient for most city and suburban commuters. The range for realistic usage is estimated at approximately 22 to 38 miles per charge, depending on how much time you spend pedaling, which assist levels you use, and how heavy the rider is. If you ride on completely flat ground using only assist, you'll probably reach the upper end of that range. Hilly rides and riders who use throttle heavily will cut into that range significantly.
The 30A BMS at 48V allows for up to approximately 1440W of continuous power output. This is more than enough to support the full 500W to 1200W motor range as listed. Sustained climbing with a 1000W motor will still leave the BMS with headroom. At the top of the compatibility range (1200W), the 30A rating leaves room for error.
Motor Compatibility: 500-1200W Range
The lower bound of 500W on motor compatibility is slightly higher than some external box packs which start at 100W or 250W. Practically speaking, this means that the BMS is designed towards larger, more powerful applications rather than the smallest possible ones. You can still run a 250W motor with this battery and it should function properly, but the 500W floor indicates the designers intended this for mid-power builds.
In contrast, the upper limit of 1200W is a practical benefit for builders working with high-powered hub motors. Not all 13-15Ah capacity packs are specified for 1000W-plus motors, so the higher upper range here is a positive attribute for builds requiring more power.
External Box Form Factor
Similar to most packs of this capacity, this is an external mounting box. Therefore, this will not fit into a downtube slot nor will it fit into a hailong/shark mounting rail system. Most conversion builds will use a rear rack, triangle bag, or custom bracket to attach the pack to their bike.
You can mount this pack to a large triangle bag designed for the battery's dimensions on most diamond-frame bikes. Attaching the pack to a rear rack is also possible and works best if you're willing to spread the load to the back of the bike.
The 672Wh Capacity Decision
Why 14Ah instead of 12Ah or 15Ah? Honestly, 672Wh is close enough to the 720Wh of a 15Ah pack that the difference of 48Wh (about 7 percent or 2 to 4 miles of real-world range) isn't that big of a deal. If you can find a 15Ah pack at a similar price point and weight, then the extra 48Wh is a nice bonus. However, if the Jafecokaer 14Ah fits your budget and weight targets better, the range difference is small enough that it shouldn't make a big difference in daily commuting.
Compared to a 12Ah pack, you'll gain 96Wh more, which is equivalent to about 3 to 5 additional miles. While the added mileage is noticeable if you frequently ride at the limits of your pack's capacity, for most urban commuters with routes of 20 miles round-trip or less, the 14Ah pack provides a comfortable buffer.
Because the 30A BMS at 48V means the pack can deliver plenty of power under the maximum demand of the compatibility range, you're not really stressing the BMS with a 1000W motor in normal riding conditions, which is generally good news for the life of the pack.
Evaluating Without a Deep Review Pool
Since this is a new listing on Amazon without hundreds of reviews, you're going to be relying more on specifications than user experience when deciding whether to buy it. The 30A BMS, 48V chemistry, and 14Ah cell configuration are all quantifiable and consistent with what you would expect from a reputable builder in this class.
For buyers who would prefer a longer history of customer reviews, check current pricing and reviews on Amazon since the listing may have grown its review base since this was written. Alternatively, the battery comparison table lets you filter products by capacity and form factor to find other options with a longer history of user feedback.
Who Should Buy This
The Jafecokaer 48V 14Ah would be a good option for conversion builders who want a battery that offers more capacity than a 12Ah pack but don't feel like stepping up to the 15Ah or 20Ah tier, and who are running motors in the 500W to 1200W range. The 30A BMS provides comfortable overhead for higher-power applications within the compatibility range. The external mounting format makes it suitable for conversions built onto bicycles that do not have a frame-mounted battery system.
If you require a frame-mounted battery system, or you are running a motor outside of the 500-1200W range, filter the battery comparison table by voltage and form factor to find a better-suited option. If you want a battery with a longer history of customer reviews before committing, there are 15Ah options with more user reviews in the same capacity tier.
Browse 48V 14Ah ebike batteries on Amazon to see what else is available, and check the ebike battery reviews section for details across other capacity tiers.
Frequently Asked Questions
Is 672Wh enough for a daily commute? Most city commuters with round trips of 20 miles or less on relatively flat terrain will have enough range. If your commute includes steep hills or you rely heavily on throttle, you can expect range to fall toward the lower end of estimates, around 18 to 25 miles.
Why does the compatibility start at 500W rather than 250W? A 500W minimum for motor compatibility indicates the designer sized the BMS for mid to high power applications. In reality, lower-power motors will typically perform adequately since a 30A BMS provides ample overhead for those lower current loads. The 500W floor is a compatibility claim, not a strict cutoff.
How does 672Wh compare to a 15Ah pack? A 15Ah pack at 48V produces 720Wh, or 48Wh more than the 14Ah pack. In actual usage that equates to 2 to 4 miles of additional range. If the additional mileage is important for your daily commute, the 15Ah pack is worth the minor increase in weight. If you're already operating comfortably inside the 14Ah capacity, the difference is negligible.
What form factor is this? External mounting box, which mounts to a rear rack, triangle bag, or custom bracket. It cannot be mounted to a frame-integrated system such as a downtube slot or hailong/shark rail. Check the battery comparison table to find integrated form factor options if you need those.
How long does it take to charge? Using a 2A charger, a 14Ah battery will charge from near-empty in about 7 hours. A 3A charger will do it in about 4.5 to 5 hours. Verify the amperage of the charger included in the listing before ordering.
Will this work with a Bafang mid-drive? The 48V voltage is compatible with Bafang BBS02 and BBSHD kits. Verify connector compatibility before ordering, since mid-drives typically use specific connector styles that may not match the default connector on the battery.