The Yose Power 48V 13Ah Silver Fish is a seat tube-mounted ebike battery that holds 624Wh of capacity for ebikes running 48V systems with up to 700W of peak power. Yose Power has built a large family of silver fish ebike batteries of varying capacities, and this 13Ah version sits squarely in the middle of that range. The 48V 13Ah silver fish ebike battery comes with a charger, mounting hardware, keys and a user manual. The silver fish form factor is a popular style of ebike battery housing that allows riders to install a clean looking battery that fits neatly behind the seat tube, and the addition of a USB port and LED power indicator are a couple of additional features that make this ebike battery a great option. To view how this ebike battery compares to others visit our comparison table.
Compatibility information is provided in the listing, specifically mentioning compatibility with the XH370-10J and ZL1010-F connectors. These connector models are found in ebike systems using the silver fish battery housing. If your ebike uses either of these connector models then this may be a plug-and-play solution. Yose Power is a well-established brand in the ebike battery market and tends to be fairly responsive to compatibility inquiries, which can be a major benefit if you are unsure of whether or not this battery will fit your ebike.
Specs and Build Quality
At 48V and 13Ah, the Yose Power 48V 13Ah ebike battery contains 624Wh of energy storage (48 x 13 = 624). This is considered to be a medium capacity for a 48V silver fish ebike battery and should provide a reasonable range for commuter and recreational riding. Yose Power states that the battery is suitable for motors ranging from 100W to 700W, which covers the majority of ebike motors currently in use. The battery weighs 8.8 pounds, making it one of the lighter 48V packs available.
Physical specs
Dimensions are 2.95 x 4.37 x 15.28 inches. The battery mounts behind the seat tube of your ebike frame using the included mounting hardware. The mounting hardware consists of a clamp-style mounting base that fits around the seat tube and is held in place by a single bolt. The battery simply slides up into the mounting base and is secured using a slide-in style design. The locking mechanism that secures the battery in the mounting base serves as both a locking mechanism to prevent theft and a power switch. Therefore, the battery must be unlocked and the power switch must be turned on in order to operate the ebike.
One of the nicest features of the Yose Power 48V 13Ah silver fish ebike battery is the inclusion of a USB output port rated at 5V 1A. This is sufficient to charge your phone while on the road and is particularly beneficial for riders who use their phone as a navigation aid. Additionally, the battery has an LED power indicator that displays the remaining battery capacity when the power button is pressed twice and automatically shuts off after 2 seconds to preserve battery energy. Both of these features are excellent examples of thoughtfulness and are not typically found in ebike batteries in this price class. The housing is also somewhat water resistant and riders should not worry too much about riding in the rain, though it is recommended to avoid submerging the battery under water.
BMS and motor range
The BMS on the Yose Power 48V 13Ah silver fish ebike battery is rated at 20A max and 10A standard discharge current. This is a slightly more conservative rating than some competing ebike batteries that state their BMS will support higher discharge currents (such as 30A or 40A) but is actually a better match for the 700W motor limit. At 48V and 20A, the Yose Power ebike battery can support up to 960W of peak power. This provides ample reserve headroom above the stated 700W maximum.
Yose Power claims to have conducted individual cell testing and asserts that 78 percent of the battery's capacity remains after 1000 cycles. Total cycle life for the battery is estimated to be between 1000 and 1200 cycles. Every individual cell in the battery is tested prior to assembly for both charging and discharging, and Yose Power claims that their engineering test battery has survived over 5 years of operation on their own ebikes. These are strong durability assertions compared to most low-cost ebike battery manufacturers. The BMS provides protection against overcharge, over-discharge, over-voltage, over-current, short circuits, and extreme temperatures.
Form Factor and Compatibility
The silver fish form factor mounts behind the seat tube of your ebike frame. The Yose Power 48V 13Ah comes with a mounting base that clamps onto the seat tube and the battery mounts underneath the base. This is a clean and easy installation method that effectively hides the battery relative to downtube and rear rack mounted options.
The listing specifies XH370-10J and ZL1010-F as compatible connector types. If you are unsure of the connector type used by your ebike, check the model number stamp on the discharge connector of your existing ebike battery. Yose Power is happy to help with compatibility issues, so feel free to reach out to them before purchasing. The connector type determines compatibility of the Yose Power 48V 13Ah silver fish ebike battery with your ebike.
Yose Power produces this ebike battery in multiple capacities (10.4Ah, 13Ah, and 20.8Ah) so you can choose the best capacity for your needs. Since the mounting base is the same across all sizes, you can potentially swap between capacities using the same base. Check our blog for reviews of other Yose Power batteries to see comparisons of the different capacities.
Real-World Range Estimates
With 624Wh of capacity, the Yose Power 48V 13Ah should offer a reasonable range for most riding activities. On a 250W to 500W motor with moderate pedal assistance on flat terrain, expect around 25 to 40 miles per charge. With heavy throttle use on a 500W to 700W motor, you can expect around 15 to 25 miles depending upon terrain, rider weight and wind conditions.
The included charger is rated at 54.6V 2A and Yose Power states that the charger will bring the battery from completely empty to fully charged in around 6 to 8 hours (they list 8 hours in the bullet points and 6 hours in the technical specs, so actual time will probably fall somewhere in between). This is acceptable for overnight charging and you can top it off during the day if you do a second ride. For commuters doing a 10 to 15 mile round-trip each day, this battery should easily have plenty of extra juice to cover your commute and still have plenty left for another ride. See how the Yose Power 48V 13Ah compares to other 48V ebike batteries on our comparison table.
What Amazon Reviewers Are Saying
At the time of writing, the Yose Power 48V 13Ah Silver Fish has no reviews on Amazon. The listing was first made available in February 2026, so this is a very new ebike battery. Without any reviews, there is no independent feedback on real-world range, long-term reliability, or fitment accuracy.
That said, Yose Power has a history of producing quality silver fish ebike batteries, including the 48V 15Ah version reviewed separately on this site. While the 13Ah version has not had any reviews written, the brand's reputation in the ebike battery market lends some confidence in the performance of this battery. If you are thinking about buying this ebike battery, pay close attention to the return policy and test it thoroughly as soon as it arrives. Verify that the battery fits properly, charges normally and provides expected range before your return window closes.
Who Should Buy This
The Yose Power 48V 13Ah Silver Fish ebike battery is ideal for riders that have a 48V ebike system capable of up to 700W of peak power and would like to install a seat tube-mounted ebike battery with some convenient features. The USB port and LED power indicator provide real value-added benefits for riders. The 624Wh of capacity in this ebike battery will provide sufficient range for most daily commuting and recreational ebike riding. At 8.8 pounds, this is significantly lighter than many competing ebike batteries, which will matter to riders concerned with reducing the total weight of their ebike.
This ebike battery works best for riders that already know their ebike uses a silver fish mount and one of the listed connector types (XH370-10J or ZL1010-F). If you are unsure of compatibility, please reach out to Yose Power before placing an order. The lack of reviews for this ebike battery model means that you will be basing your decision on the brand's reputation and not on actual consumer experience. However, Yose Power has produced several well-regarded ebike batteries of similar design and construction. Browse more ebike battery reviews and check our comparison table to determine how this ebike battery compares to other options.
Frequently Asked Questions
What motor sizes can the Yose Power 48V 13Ah handle? Yose Power rates this battery for motors from 100W to 700W. The 20A max current at 48V provides up to 960W of peak power, giving comfortable headroom for motors up to the stated 700W limit.
Does the Yose Power 48V 13Ah come with a charger? Yes, the package includes a 54.6V 2A charger, mounting base, two keys, and a user manual. Full charge time is approximately 6 to 8 hours from empty.
What is the USB port on this battery for? The 5V 1A USB output lets you charge your phone or other small electronic devices while riding. It is useful for keeping your phone alive during long rides, especially if you are running navigation apps that drain battery quickly.
How long will this battery last before capacity degrades? Yose Power claims 78 percent capacity remaining after 1000 cycles, with total cycle life between 1000 and 1200 cycles. With daily use, that translates to roughly 3 to 4 years before you notice meaningful range loss.
Is this battery waterproof? The housing has some water resistance and can handle light rain. But Yose Power recommends avoiding direct water contact with the battery, so do not ride through deep puddles or wash it with a hose.
What connectors are compatible with this battery? The listing names XH370-10J and ZL1010-F as compatible connector types. Check the model number on your current battery's discharge connector to confirm compatibility before ordering.