Your battery is dead. Or it could just be a small battery. If you see a large and heavy fat tire folding e-bike and you need a 52V replacement, the ShunTongDa 52V 17.5Ah DCH-009 is your best bet for a plug-and-play solution. This is the replacement pack for the Lankeleisi X3000 Plus and other related folding e-bikes, and it contains 910 watt-hours of usable energy inside a case that simply bolts into the frame.
Prior to spending cash on a new pack, this is your fitment breakdown. What makes this battery special is the physical shape. As opposed to a general-purpose tube battery or a rack-mount battery, this is a DCH-009 foldable pack. It goes into a specific enclosure. Make the right selection and you'll have a real upgrade path with lock, power switch, and a 30A BMS. Choose incorrectly, and you've wasted a bunch of cash on a paperweight. Let's take a closer look at what this pack is, what it will fit, and why it may be worth installing in your bike.
Specifications and Build Quality
Start by checking the specs. Specs are all that matter. This is a 52V pack with 17.5Ah of storage capacity, equivalent to 910 watt-hours. Higher voltage results in better power delivery to the motor compared to the lower voltage, typically 48V, packs most of these fat-tire folding e-bikes roll off the assembly line with. In addition to better power delivery to the motor, more watt-hours results in you traveling farther before needing to recharge. For most folding fat-tire e-bikes that seem lighter than they actually are, the ability to travel further after installation is the main reason for replacing the stock battery with something bigger.
According to the measurements, the size of the battery is 16.5 x 4.5 x 2.3 inches. Good news, thin profile, great news, especially given how little room there usually is for batteries inside folded frames. It is intended to sit in the downtube or above the seat tube housings, depending on your model, and the DCH-009 designation is your indication of whether this pack will fit. The build quality is comparable to previous ShunTongDa products. Rigid outer casing, sealed connections and enclosures for electrical components, and a cover that closes perfectly.
In addition to being a replacement pack for your existing pack as part of your bike's manufacturer bundle, an immediately apparent feature of this pack is the black top cover logo. Therefore, if your original battery has the same dimensions as this pack and looks almost identical as well, then this pack will replace it flawlessly. However, if your original pack doesn't look like what ShunTongDa offers here, then that's your first red flag. We will go over this subject in greater detail later.
BMS, Safety, and Other Features
Inside every modern ebike battery is a battery management system. This pack includes a 30A BMS. A discharge rating of 30 amps is plenty for the motors you find on most folding fat-tire e-bikes. The BMS helps limit temperature buildup from sudden throttle application from a standstill by limiting current flow, and limits flow to maintain steadiness going uphill without tripping. Furthermore, the BMS maintains equilibrium between each cell and stops operation prior to any damage occurring to the cells due to over-charging or under-charging. This protects the possibility of a 910 watt-hour pack becoming hazardous.
Safety certifications exist for lithium packs you plan to charge at home or in your garage. Proper thermal protection of lithium packs is evaluated extremely closely. However, quality cells combined with quality BMS is what separates a battery that lasts years from one that doesn't. ShunTongDa states this pack will provide at least 1000 plus charge cycles. Practically speaking, that translates to several years of daily usage before capacity noticeably drops off.
Some additional design characteristics help set this pack apart from generic alternatives. First and foremost, there exists a built-in safe lock switch that provides an additional level of safety against theft. You can either pull the battery out of the frame or lock it down so no one walks away with a high-end pack. Next are separate switches controlling power supply that enable complete separation from power preventing drain when left sitting idle.
Standard charging options exist but users may want to know that default charge rates are at 2A. Cutoff charging occurs once the pack reaches 54.6 volts. Charging temperature ranges are 0 to 45 degrees celsius for charging, and minus 10 to 60 degrees celsius for discharging. Discharge port configurations conform to industry standards using 5-pin connectors. Users should remember these numbers if you plan on riding through cold weather conditions as charging cold packs is generally bad practice.
Fitment and Compatibility
Fitment is probably nowhere more critical than it needs to be for buyer validation in terms of determining compatibility, as this is clearly a customized replacement battery. Compatible models according to ShunTongDa documentation include a narrow subset of e-bikes with folding fat tires including Lankeleisi X3000 Plus, ENGWE Pro 2.0, Ginghma R7 Pro, Cmaceweel RX 20, and Jasion X-Hunter full suspension bikes. If you fall into one of those groups then this pack is specifically made for you.
More importantly, as stated in the listing, it will only work properly if the size and visual appearance of your original battery match what ShunTongDa is offering. The listing states it explicitly. This pack was developed as an internal replacement battery and as such it was developed to replicate visually, and in size, your original pack so that if your original pack measures identically to this pack's dimensions, then you have essentially purchased a direct replacement for your original pack. Measure your original battery versus the listed 16.5 x 4.5 x 2.3 inch spec, and check for similarities and differences in the locations and layout of your original pack's discharge ports and locking mechanisms.
If you confirm your original pack's measurements are equal to ShunTongDa's offerings for both size and visual representation, then you have won. If you are unsure whether or not your original pack will match ShunTongDa's representations in terms of size and visual representation, it would be wise to stop shopping until confirmation takes place since returning an aftermarket replacement battery is rarely an easy process.
Who Is This Battery For?
This battery is for owners of Lankeleisi X3000 Plus, ENGWE Pro 2.0, Ginghma R7 Pro, Cmaceweel RX 20, and Jasion X-Hunter looking to obtain a functioning 52-volt replacement for their OEM battery. If your OEM battery has failed, or if your OEM battery holds significantly less than its original capacity, or if you want more usable energy contained in this pack, which amounts to an additional 910 watt-hours, then this represents a viable route.
Important disclosure prior to purchase: at present there are fewer than 5 customer reviews displayed for this product which represent exclusively a single five-star review at time of writing. Although that says nothing concerning either performance or fitment specifically relating to this battery, it implies that customers who rely upon consumer feedback for validation in regards to determining fitment applicable to their particular model bike cannot rely upon them as evidence.
Thusly, if you are willing to verify your original battery measurements to validate accuracy against ShunTongDa's designated measurements, and verify your DCH-009 housing matches your original battery's measurements and appearance, then this represents a good candidate for purchase. On the contrary, if you are uncertain concerning the housing on your bike, taking another few minutes to verify prior to making a purchase would likely prove prudent. The ShunTongDa 52V 17.5Ah ebike battery on Amazon functions as represented, hence represents exactly what e-bikers utilizing fat-tire folding e-bikes expect.
Frequently Asked Questions
Will the ShunTongDa 52V 17.5Ah ebike battery fit my Lankeleisi X3000 Plus?
Yes. Lankeleisi X3000 Plus is one of the models listed by ShunTongDa, therefore it should provide suitable measurements based on DCH-009 housing style. Please make sure to double-check your original ebike battery against the 16.5 x 4.5 x 2.3 inch specification for your own peace of mind.
How much usable energy does this battery contain?
This is a 52-volt pack containing 17.5 amp hours, which equates to approximately 910 watt-hours. Better voltage delivery to the motor compares favorably to stock packs supplied with most fat-tire folding ebikes, usually rated at around 48 volts. Increased watt-hours results in increased distances between charges.
Are there locks on this battery?
Yes. A safe lock switch is integrated into this ebike battery for added security against theft. A power supply control switch is additionally included for total power isolation from the ebike when idle or parked.
What kind of BMS does this battery utilize?
The BMS utilized in this ebike battery is rated at 30 amps with an indicated max rated discharge at 30 amps. That's more than adequate for the usual load experienced by motors in most folding fat-tire ebikes. It allows continuous power delivery on inclines and hills without triggering BMS tripping, and prevents excessive heat buildup from rapid acceleration from zero via throttling.
How long will this battery last?
ShunTongDa claims that this ebike battery will achieve at least 1000 plus charge cycle life expectancy. The practical translation thereof equates to multiple years of continuous operation before decreased capacity becomes evident.
See where this fits against the rest of the market in the ebike battery comparison table, and browse more riding and buying guides on the blog.