There's a valid reason to believe that the 11Ah capacity tier for the ebike battery isn't discussed as frequently as it should be. While most customers buy 15Ah or 20Ah ebike batteries based strictly on spec anxiety, there are certainly many ebike riders with shorter commutes and ebikes that are extremely lightweight where every ounce counts. Those riders would likely find that 528Wh is all the battery they'll ever need.
Shewaihe offers the SHEWAIHE 48V 11Ah battery in the Hailong/Shark form factor, and the battery is compatible with a wide range of ebike motors, from 100W to 1500W. That level of flexibility is quite unique. On one hand, if you're using an ebike motor in the very light category, you're in the 100W range. On the other hand, if you're using a high-performance ebike motor, then you're going to fall squarely in the performance category at 1500W. Because the battery is compatible with such a wide range of motor sizes, the SHEWAIHE 48V 11Ah is definitely worth considering for a larger number of ebike builds than the 11Ah capacity would normally imply.
As of the date of this writing, there were approximately five customer reviews for the SHEWAIHE 48V 11Ah battery. Those reviews averaged about 3.7 out of 5 stars. Since there are so few reviews, it's difficult to say whether the reviews reflect the true quality of the battery, but it is possible to analyze the pattern of complaints contained within those reviews along with the specifications for the battery.
Specs and What 528Wh Delivers
When you multiply 48V by 11Ah, you get 528Wh. Based upon typical ranges for most ebike riders in terms of terrain and usage patterns, most riders will achieve real world ranges of approximately 17 to 28 miles per charge. Flat urban routes that include considerable amounts of pedal assist will likely result in the higher end of that range. However, hilly terrain combined with throttle use will likely result in the lower end of the range. As a result, for a round-trip commute of approximately 12 miles, the 528Wh battery provides plenty of room to spare.
One of the advantages of using an 11Ah battery in terms of weight is the fact that it is significantly lighter than a 15Ah or 20Ah battery in the same form factor. Therefore, for an ebike conversion build that includes a hailong-mounted battery, using an 11Ah battery will result in a lower total weight, which will improve the overall feel and handling of the ebike.
Hailong Form Factor: What It Means
The Hailong/Shark mounting system is a frame-mountable design that mounts directly to the downtube of the bicycle frame. The battery simply slides into a slot in the downtube and locks in place. This approach has several advantages over attaching an externally-mounted battery box to the back of the frame, including providing better weight distribution, protecting the battery from road debris, and creating a cleaner overall look.
However, the first thing you need to check before purchasing a Hailong/Shark battery is to make sure that the frame you are planning to install it onto has the correct slot size to accommodate the battery. Frames that have Hailong/Shark mounting systems built-in are specifically designed to accept the Hailong/Shark battery. If you have a frame that doesn't have the Hailong/Shark mounting system installed, then you won't be able to install a Hailong/Shark battery, and you'll have to consider using an external battery mount.
Motor Compatibility: 100W to 1500W
The compatibility range of 100W to 1500W is very unusual. A 48V 30A BMS can handle continuous output of 1440W, thereby accommodating the entire compatibility range. Therefore, the only reason why the battery is listed as having a minimum power output of 100W is because the BMS does not have a cut-off that prohibits operation below that amount of power output. A 30A BMS can provide whatever amount of current the motor requires, so it is technically viable to operate the battery with a very low-power motor.
On the other hand, if you're operating a motor that produces 1500W of sustained power, you will need to verify the maximum continuous ampere rating of the BMS directly with the seller prior to purchasing the battery. Intermittent peak draws of 1500W during acceleration are usually acceptable, but sustained 1500W draws on steep hills for extended periods of time are another story.
What the Early Reviewers Say
As of the date of this writing, there were only five customer reviews of the battery, and those reviews averaged 3.7 stars out of 5. Although it's impossible to conclude anything definitive from such a limited data set, there are some patterns present in the reviews that are worth noting in conjunction with the specifications for the battery.
In the Hailong/Shark category of batteries, the most common complaints in reviews are related to two types of problems:
- Fit compatibility with specific frame designs.
- Connector-type mismatch with their controllers.
Neither of those is a problem with the quality of the battery itself, but they represent a large percentage of the negative reviews for batteries in the Hailong/Shark category.
Typically, positive comments in reviews of early shipments in this style relate to the fact that the battery arrived charged and worked properly, that the capacity provided more than adequate range for shorter commutes, and that the frame-integration looked clean. If you know that your frame has a confirmed compatible Hailong slot dimension and that the connector type is compatible with your controller, the risk of those problems occurring diminishes dramatically.
Check current pricing and the latest reviews on Amazon since review numbers may have changed since this was written.
Who Should Buy This
The SHEWAIHE 48V 11Ah is suitable for conversion builders who have a confirmed Hailong-compatible frame and who are running an ebike motor in the 100W to 1500W range and do not require more than 25-30 miles of range per charge. Because the compact capacity allows for reduced weight compared to a 15Ah or 20Ah battery in the same form factor, the reduced weight will benefit the handling of the ebike, particularly on lighter builds.
If you prefer a more established review history before making your purchase, there are also Hailong packs with a higher review count in the same capacity range. Check the battery comparison table and filter by the Shark/Hailong form factor to compare options.
Browse 48V Hailong ebike batteries on Amazon to view current pricing and alternative products. More reviews for a variety of form factors are in the ebike battery reviews.
Frequently Asked Questions
How do I determine if my frame has a compatible Hailong slot? The slots used in Hailong frames are of a certain width and mounting rail configuration. Determine if your frame has the correct slot configuration by referring to your frame documentation, or measuring the slot dimensions. Most conversion frames specifically indicate if they are compatible with Hailong batteries. If you are unsure, contact your frame manufacturer, or take the battery dimensions to compare them against your frame's slot dimensions before placing an order.
What's the actual range at 11Ah on a 48V system? Based on typical usage patterns and terrain, the majority of ebike riders experience a real world range of approximately 17 to 28 miles per charge. Flat urban routes with substantial amounts of pedal assist provide the highest mileage range. Conversely, hilly terrain with heavy reliance on the throttle will produce the lowest mileage range. For a round-trip commute of approximately 12 miles, this battery provides ample excess capacity.
Why does compatibility begin at 100W when 11Ah appears to be a higher-power battery? The only reason why the battery is rated as starting at 100W is that the BMS does not have a limit on the lower power output of the battery. Therefore, the BMS is capable of delivering whatever power the motor needs, so technically speaking, the battery is capable of being used with a low-power motor.
Will this work with a 1500W motor for sustained climbs? You will need to confirm the continuous ampere rating of the BMS directly with the seller prior to purchasing the battery to ensure that the BMS can sustain the 1500W load. Typically, high-performance motors operating in the 1000-1500W range have intermittent peak draws rather than sustained power outputs, so the BMS should be capable of sustaining the load.
What connector does it ship with? Check the current listing description for connector details. Hailong battery packs come with various connector types. If the connector type does not match your controller, adapters are relatively inexpensive and readily available.
Can I replace an existing Hailong battery with this one? This will depend on whether the dimensions and connector type match your existing battery. Hailong frames vary slightly in terms of slot dimensions between manufacturers. Compare your existing battery to the SHEWAIHE dimensions to determine if they are compatible before attempting to order it as a direct replacement.