The ShunTongDa 48V 10.4Ah is a 499.2Wh folding ebike battery intended as a replacement pack for Lectric XP Step-Over 1.0 and 2.0 models. ShunTongDa is a much smaller company in the folding ebike battery space, and this pack uses a configuration of 13S4P of 18650 cells with a 30A continuous BMS. The pack has a 5-pin discharge port, anti-theft locking with 2 keys, USB charging port, and the pack itself comes with a charger. On paper the specs seem competitive for a folding battery in that price tier, but the limited reviews make the actual fitment into a folding ebike worth questioning.
Folding ebike owners looking for a replacement pack are right in the mid-range for most models. This 499.2Wh capacity battery is pretty decent for the size, with a capacity total for the money. The 30A continuous discharge rating is higher than what we normally see on a folding battery in this price bracket, and a 90A rating on peak seems to suggest that it can take a good bit of throttle without the BMS shutting it off. ShunTongDa are marketing this battery for Lectric XP Step-Over, but do also mention compatibility with 500W, 750W, and 1000W motors. The pack is housed in a molded ABS type of housing, which keeps the weight down to around 3.01 kilograms, and the pack includes a 2 to 5 amp charge current charger.
Specs and Value
The core specs for the ShunTongDa 48V 10.4Ah are 48V nominal voltage and 10.4Ah capacity, for 499.2Wh total. 13S4P cells means 13 cells (for the 48V voltage) in series and 4 cells in parallel (for the 10.4Ah capacity), using 18650 lithium-ion cells. It's a reasonably common, proven configuration for a folding ebike battery of this capacity.
Physical specs
The dimensions according to the ShunTongDa listing and product spec sheet is 467 x 100 x 43mm (approx 18.37 x 3.93 x 1.69 inches) and the net weight is 3.01kg, which translates to about 6.6 pounds. These dimensions were designed to fit into the frame cavity of the Lectric XP Step-Over 1.0 and 2.0 folding ebikes. The ABS plastic housing is lightweight though, and will not be as rugged as some aluminum alloy housings of more expensive folding batteries.
A charger that's included supports a charge current range of 2 to 5 amps, with a charge cut-off voltage of 54.6V. ShunTongDa doesn't specify the actual amperage of the charger in the box, but that range on the spec sheet seems to indicate that the charger output is in that range. The battery has a USB port built into the housing, which is a nice bonus for charging a phone or other small device while out on a ride. A carrying handle is not mentioned, though it does include a lock mechanism with 2 keys for being secured inside the frame.
BMS and motor range
The built-in BMS is rated at 30A continuous, and 90A peak, for a pretty solid discharge current for a folding ebike battery. At 48V, 30A continuous equates to something like 1440W power delivery (it will be less due to sag). The BMS protects against short circuits, overheating, charge reverse, over-discharge, overvoltage and overcurrent. The discharge cut-off is 39V, a typical low-voltage cut-off for 13S lithium packs.
The spec sheet states suitable for motors from 0 to 1200W. The product title and bullet points mention 500W, 750W and 1000W motors. At 30A continuous, the BMS is comfortable with the use of 1000W motors and has some headroom for sporadic exceedance of that rating. ShunTongDa claim over 1000 recharge cycles with low self-discharge, this means that after 2 years of daily use, the bulk of the capacity still needs to be there if the cells last with that many cycles.
Form Factor and Compatibility
ShunTongDa use the well-known folding ebike format. There is a 5-pin discharge port that slots into the frame cavity and connects to the controller. This 5-pin connector is marketed for the Lectric XP Step-Over 1.0 and 2.0, and the listing does not say whether it fits other popular folding ebikes. This is a more narrow claim than the pretty universal fit from most folding batteries.
The anti-theft lock uses a key that is also the power switch for the battery. Turning with the key locks it into the frame and powers on or off the rest of the battery, no additional power button is necessary. Two keys are included with the battery. This lock mechanism also secures the battery in the frame cavity of the bike when parked, and to remove the battery for indoor charging requires the key. This is a fairly standard setup for folding ebike batteries and works well for commuters needing to charge the battery indoors.
The listing states that this is a "version B" battery which indicates that there are earlier or alternate version batteries with slightly different dimensions or connector arrangements. If you're replacing a battery on an existing Lectric XP, checking the physical dimensions and connector layout of your current battery against the spec sheet is the safest bet to do prior to ordering.
Real-World Range
Given the 499.2Wh of capacity, the ShunTongDa 48V 10.4Ah should provide plenty of juice for most short to moderate distance commutes on a folding ebike. Running a 500W motor with moderate pedal assist with little to no hills, the expected range is somewhere in the ballpark of 15 to 25 miles per charge. On a 750W or 1000W motor running in heavy throttle mode with a lot of hills, that range drops to somewhere in the ballpark of 8 to 15 miles per charge. Riders who commute 5 to 10 miles each way should have no issue making a full round trip on a full charge under normal riding conditions.
The 499.2Wh capacity puts this battery somewhere in the middle of the pack for folding ebike batteries. It's not really designed for long-distance touring but should have enough energy for last-mile rides, daily commutes, and short recreational trips. The 30A BMS means that the battery won't sag as much under a heavy load as one with a lower BMS rating, which should help it to keep up a consistent level of performance through the ride. See our comparison table for how the ShunTongDa 48V 10.4Ah stacks up against other 48V folding batteries on price per watt-hour.
What Amazon Reviewers Are Saying
There is only one verified customer review at the time of writing on Amazon for the ShunTongDa 48V 10.4Ah and it is a 1-star review. The reviewer states that it did not fit in their Lectric ebike and found returning it a pain. Apparently ShunTongDa sent out a return shipping label, but then couldn't find the tracking information once the battery was sent back by the reviewer. This isn't a great story for a battery that is specifically advertised as a replacement for Lectric XPs.
With just one review to go off, it's hard to draw many conclusions about the battery or the brand. It may be an issue with differences in model years for the Lectric XP, variations in frame cavity dimensions or even just a fault between the battery version and their particular bike. The negative return experience is something to keep in mind if you want a smooth return process in case this battery doesn't work out for you.
ShunTongDa tout 24/7 service and a satisfaction guarantee in the listing, which is reassuring in theory but untested by positive experiences on Amazon yet. For that reason, if you're looking at this battery, reaching out to ShunTongDa to confirm that this battery will work with your exact year and model of Lectric XP before purchasing is advisable. If you'd prefer to buy a folding battery with a more established history, consult the battery comparison table for other 48V folding ebike batteries.
Who Should Buy This
The ShunTongDa 48V 10.4Ah is apparently aimed at Lectric XP Step-Over 1.0 and 2.0 owners who need a replacement folding battery with a respectable BMS rating. The 30A continuous and 90A peak discharge ratings are decent for the category, and the 499.2Wh capacity should be more than adequate for the average folding ebike commuter. The USB port and the anti-theft lock are nice additions, and it comes with a charger.
The limited review history and the one negative fitment review are valid concerns, as is the claim that it did not fit a Lectric XP, considering this battery is marketed specifically on that platform. Those who want more certainty about this battery fitment should contact ShunTongDa directly with their bike model and year before ordering. For those willing to explore other 48V folding batteries, our comparison table features several with actual reviews and a proven history.
Frequently Asked Questions
What Lectric models does the ShunTongDa 48V 10.4Ah fit? ShunTongDa advertise this battery specifically for the Lectric XP Step-Over 1.0 and 2.0 models only. The battery overall dimensions are 467 x 100 x 43mm with a 5-pin discharge port. Make certain that your Lectric XP model uses the same connector type and frame cavity size before ordering one.
What is the BMS rating on the ShunTongDa 48V 10.4Ah? The BMS is rated to 30A continuous and 90A peak. This will allow motors up to around 1200W supported according to the spec sheet. The BMS also safeguards against short circuits, overheating, charge reverse, over-discharge, overvoltage, and overcurrent.
How much does the ShunTongDa 48V 10.4Ah weigh? The net weight is 3.01kg or around 6.6 pounds. The use of a lower weight ABS plastic casing also helps lower the weight over more expensive alloy batteries.
Does the ShunTongDa 48V 10.4Ah include a charger? Yes, a charger is included along with two keys for the anti-theft lock and a user manual. The cut-off voltage for the charge is 54.6V. The charger supports 2 to 5A charge current.
What cells does the ShunTongDa 48V 10.4Ah use? A 13S4P build of 18650 lithium-ion cells are used. ShunTongDa claims over 1000 recharge cycles with low self-discharge. The specific cell brand is not noted in the listing.
Does the ShunTongDa 48V 10.4Ah have a USB port? Yes, a USB port is built-in for charging small devices like a phone during a ride. This is not the same connector as the discharge port that runs the ebike motor.