Dead OEM pack, tight budget, no interest in brand names. That is exactly who the Shewaihe 48V 15Ah is built for: a plain 720Wh replacement block that gets a working bike back on the road. Three early buyers rate it positively, and none of that changes what this pack is, a functional tool.
Specs and Value
The specs of the Shewaihe 48V 15Ah ebike battery include:
- The voltage and amp-hours (Wh): 48V at 15A = 720Wh.
- The number of cells: The BMS controls 6 cells.
- The length of warranty: No warranty information is available online.
This pack comes with a basic BMS system that prevents the common failure modes: overcharging, deep discharges, and shorts. As stated earlier, weak cells cause a rapid drop in performance when they reach the midpoint of their charge cycles. This is also how a ride home ends with a hill you cannot climb. Low prices come with risks. Here, the unknown is long-term cell performance. If the pack lasts for a year on a regular weekly charging schedule then the chances of success increase greatly.
The marketing message is clear: Branded replacement packs are expensive and this one isn't. If you live locally, and you are looking for a simple solution to replace your ebike battery pack then you will likely be happy. If you are trying to achieve a high number of charge/discharge cycles, you should consider using an ebike manufacturer's product, or waiting until there are enough reviews on this item so you know it will perform well over time.
Form Factor and Installation
The form factor of this ebike battery is a rectangular shape. Most ebike manufacturers install the battery into a standard tray-style bracket attached to the frame of the bike. Some ebikes do not have traditional mounts like these and may have integrated batteries instead. In some cases, an additional bracket will need to be installed. According to the seller, installing the unit is relatively straightforward as long as you have all necessary hardware.
As with any physical attachment, it is essential that the physical attachment point (in this case the bracket) is secure enough to hold the weight of the battery securely to the ebike. The case is plastic and provides protection from dust. While it will withstand being exposed to the elements, it would not provide the same level of protection as a higher-quality enclosure. Securely bolt the battery onto the bike to make sure it stays in place and check that all of the mounting bolts are snug after several rides because vibrations loosen fast on lower-cost brackets.
Real-World Range
Range varies based on how much you use the throttle versus how much pedaling you do. Also based on how hilly or flat your routes are and finally based on your body weight. On average, 720Wh can give you around 30 to 40 miles of range on level ground under moderate pedal assistance. Using just the throttle reduces this by nearly half. If you're doing daily commutes and your total distance traveled each day is below 20 miles, you'll have plenty of range left over even in cold winter conditions. Hillier routes reduce this number significantly as does excess weight.
You can easily determine whether you've got headroom with this pack or not by checking your previous commute distances. The voltage rating of 48 volts supports most motors. However, aggressive throttling and frequent hard accelerations can expose the limitations of inexpensive cells. Since each cell inside the battery will regulate how quickly current flows out of it due to a limitation created by the internal BMS (battery management system), a budget-priced BMS might intentionally restrict power output during rapid acceleration in order to protect the cells themselves.
The operating temperature of the lithium cells contained in an ebike battery impacts both performance and overall mileage potential. Lithium cells exhibit increased internal resistance as temperature decreases. This results in your ebike requiring more energy to travel at a consistent speed when traveling in cooler ambient temperatures. Regardless of whether an ebike manufacturer uses inexpensive materials or more expensive ones, all lithium-based batteries lose efficiency when charged or discharged in cold temperatures. With this said, an ebike is used almost every day for transportation purposes, therefore commuting ebikes with non-reliable battery packs could result in lost income or other serious consequences.
What Amazon Reviewers Are Saying
There are three reviews of this ebike battery right now. They indicate that all three reviewers were able to successfully complete their installs without issue and that they have experienced reasonable range performance thus far with no thermal-related problems. These reviewers cannot tell us anything regarding how well these cells will continue to function over longer periods of time. Budget electronics typically appear to be performing well in month one. Consumers will exercise extreme caution and view the small sample size as a warning when making a purchase decision.
Charging and Maintenance
The ebike battery comes with a standard charger rated for use with 48-volt lithium-ion packs. Due to its large capacity (i.e., 15 Ah), charging such a large pack takes some time, therefore overnight charging is usually the best approach. Avoid storing an unused lithium-ion pack at freezing temperatures for extended periods of time and store it at room temperature unless absolutely necessary otherwise.
Who Should Buy This
Buy it if a dead pack sidelined a bike you cannot justify replacing, your rides are short and flat, and you can handle basic wiring. It is the cheapest route back to a working bike.
Skip it for cross-country trips where a failure strands you, or if you want five-year reliability backed by thousands of reviews. And if your bike uses an unusual integrated system, verify fitment before ordering.
Compare it against the rest in our ebike battery comparison table, or dig through the GoMotorbikes blog.
Check the latest price on Amazon.
Frequently Asked Questions
How Far Can I Travel on a Single Charge?
Approximately 20-40 miles depending on your motor wattage and your riding style.
Will This Battery Work with My Motor?
Yes. Designed to fit virtually every ebike system including most hub drives and mid drives, specifically designed for systems that operate under 1000w. Please verify your controller rating prior to purchasing.
How Heavy Is This Unit?
Weight is approximately 10.65 lbs (4.8 kg).
Is the Battery Waterproof?
Sealed waterproof housing protects against light rain and incidental exposure to water (splash resistant).
What Does the Key Lockout Switch Do?
Powers the battery ON/OFF. It locks-out power when switched OFF, and helps prevent unauthorized use when transporting your bicycle.
What Items Are Contained in the Box?
Battery (48v 15Ah), 5 pin battery holder, xt-60 male connector, and 2 keys. Note: No charger is included in the box. Users will require a compatible 48 volt charger (not supplied).