A 12Ah hailong battery weighing 4.63 pounds is very light, and most hailong packs at 12Ah weigh 7 to 9 pounds. The reduction in weight to 4.63 pounds, while maintaining 576 watt-hours, is a meaningful weight reduction that affects the experience of carrying or transporting the bike with the battery installed as well as how the bike handles. The RANSYRI 48V 12Ah hailong battery achieves the light weight with a waterproof case, motor compatibility for 250W to 750W motors, and a 10 by 3.54 by 3.94 inch footprint. Amazon reviewers rate this with a 4.4-star average based upon 23 reviews, providing a good size of feedback data regarding this compact hailong pack.
RANSYRI is a known entity within the 48V battery category, and particularly the lighter-weight hailong variants.
Specs and the Weight Advantage
At 48V and 12Ah, the capacity of the RANSYRI 48V 12Ah hailong battery is 576Wh. In terms of actual range on typical terrain, 18 to 30 miles per charge is expected. Urban flat riding with pedal assist provides the upper mileage estimates. Use of a throttle or hillier terrain reduces the range to approximately 18 miles. For a rider using their ebike for a daily commute of less than 12 miles each way, the range estimate is comfortable with a buffer.
The 4.63-pound weight of the RANSYRI 48V 12Ah hailong battery is also quite notable. As reference, most hailong packs are 7 to 9 pounds. Reducing 3 to 4 pounds off of a battery's weight is certainly going to impact the bike handling, especially since the weight is mounted in the downtube of the frame. Lighter weight downtube-mounted batteries provide for better front-to-rear weight distribution and overall lower weight of the bicycle being carried, folded, or lifted into a vehicle.
The dimensions of the RANSYRI 48V 12Ah hailong battery at 10 by 3.54 by 3.94 inches are also smaller than many other hailong batteries in the same capacity tier. The 10-inch length of this battery is shorter than most other hailong batteries in the same capacity tier, which impacts compatibility with different hailong frame slot sizes.
Motor Compatibility: 250W to 750W
The motor compatibility of the RANSYRI 48V 12Ah hailong battery at 250W to 750W is suitable for the BMS specifications and the capacity tier. The RANSYRI 48V 12Ah hailong battery is intended for use in ebikes that utilize 48V hub motors that are commonly found in most city and commuter ebikes. The 250W to 750W motor compatibility is not suitable for higher power motors that are 1000W plus. If you plan to install a 1000W plus motor, consider a hailong pack with a higher BMS specification.
Waterproof Case
A waterproof case adds value to a hailong-mounted battery because a hailong battery is typically subject to water splash and rain during typical riding conditions. Standard hailong packs offer some degree of weather protection due to their design, however, the added confidence provided by a waterproof case for year-round riding without worrying about battery management issues is significant.
What 23 Amazon Reviewers Say
The 23 Amazon reviewers have given this product an average rating of 4.4 stars. When reviewing this product, the Amazon reviewers emphasized the weight of the product. Multiple reviewers mentioned the low weight of the RANSYRI 48V 12Ah hailong battery as a primary reason for choosing this product over heavier hailong battery products. The combination of a frame-integrated mounting system along with a 4.63-pound weight significantly improves the handling of the bike when compared to the same frame configuration with a heavier rear-rack-mounted external battery box.
When reviewers did provide constructive feedback regarding the RANSYRI 48V 12Ah hailong battery, it followed the standard hailong compatibility model. Some reviewers experienced problems with their hailong frame slot dimensions or their ebike controller connector types. Most of these potential issues can be mitigated by verifying the fit compatibility of the RANSYRI 48V 12Ah hailong battery prior to purchasing.
The comments made by reviewers regarding the low weight of the RANSYRI 48V 12Ah hailong battery stand out in comparison to the heavier hailong battery products reviewed. Many reviewers who previously used a 7 to 9 pound hailong battery and then transitioned to this 4.63-pound unit commented on how the bike felt lighter to lift and carry. For commuters who regularly transport their bicycles via public transportation, building entryways, or stairwells, the weight difference is a functional improvement rather than a theoretical specification. The cumulative amount of effort saved by reducing 4 pounds of weight on all carries over the course of a few weeks to several months of daily commuting is substantial.
Check current pricing and the full review history on Amazon for the most recent feedback.
Who Should Buy This
The RANSYRI 48V 12Ah hailong is a good selection for riders with a hailong-compatible frame who desire the lightest practical option available in the 12Ah frame-integrated tier. The 4.63-pound weight is the defining characteristic for builds that require the lowest possible total weight of the bike, including lightweight city bike conversions and bikes that you regularly carry. The 250W to 750W motor compatibility limits this battery to the commuter motor class rather than high-performance applications. For higher-power motors, consider a hailong battery with a higher BMS spec. Verify the 10-inch length and hailong slot dimensions will match your specific frame prior to placing your order.
Use the battery comparison table and filter by Shark/Hailong form factor to compare this against other hailong packs in the same capacity range. Browse 48V 12Ah hailong ebike batteries on Amazon to compare current pricing. More hailong pack reviews are in the ebike battery reviews section.
Frequently Asked Questions
How light is 4.63 pounds for a 12Ah hailong pack? The 4.63-pound RANSYRI 48V 12Ah hailong battery is 35 to 50 percent lighter than most competing hailong packs at the same capacity and in the same form factor. The weight difference will be noticeable in both the bike handling and when carrying the bike.
How do I verify the 10-inch length fits my hailong frame slot? Measure the length of your existing battery or the length of the slot opening in your frame. Since this battery measures 10 inches, it is shorter than most other hailong batteries (typically 12 to 15 inches) and could potentially create a gap in a slot designed for a longer battery. This may affect the locking mechanism. Verify your frame slot opening is large enough to accommodate the shorter battery prior to ordering.
Does the 750W upper motor limit mean it will not work with a 1000W motor? The 750W upper limit represents the BMS and motor compatibility specified by the manufacturer. A 1000W motor may function with this battery, but would exceed the specified limits of the BMS and therefore may be closer to or at the continuous limits. A pack with a higher BMS rating is recommended for 1000W plus motors.
What connector does this use? Verify the type of connector used in the current listing. Hailong batteries generally utilize one of three common discharge connectors (XT60, Anderson, or T-plug). Prior to ordering, confirm the connector type is compatible with your ebike controller.
Is the waterproof rating sufficient for rainy riding? Yes. The waterproof case provides adequate protection for rain riding and should not present any issues. It is not rated for submersion. Keep the charge port covered when not charging the battery, and avoid riding through standing water deep enough to submerge the battery. Regular rain and road splash are handled by the waterproof case rating.
Can this replace an existing RANSYRI hailong battery? This hailong battery does not directly replace an existing RANSYRI 48V 12Ah external box battery (B0DZH6PLJK). To install this hailong battery, you need a hailong-compatible frame slot. If you already have a hailong frame and wish to purchase a lighter hailong replacement battery, compare the dimensions of this battery to those of your current battery.