Engwe folding bikes seal their batteries inside a case format built for their frames, which makes a dead pack a bigger problem than it is on a bike that takes a standard shell. The ShunTongDa 48V 14Ah DCH-009 replacement is the drop-in answer: 672 watt-hours, a 30A BMS, a dual-function lock, and a charger in the box, at 256.00.
Our first article covered this listing in July, when it sold two capacities and had almost no review record of its own. The live page has drifted since then. It now sells the 14Ah DCH-009 alone, and the record has grown into something rare in this tier: five written reviews, all five of them carrying purchase badges.
The listing drifted under our article
The old version of this page sold both a 14Ah pack and a 17.5Ah pack with about 840 watt-hours, and our July article walked through the choice between them. Today's title reads 48V 14Ah DCH-009 only, and our own data row has already moved to match it: 14 amp-hours, 672 watt-hours, 256.00.
The lesson for a buyer isn't to trust any article's slug, ours included. The URL keeps the old 17.5Ah name for link history, but the pack you get from this page is the 14Ah DCH-009.
Check the case stamp on your original pack and the live title before you order, and if you want the bigger capacity, search the storefront for it rather than assuming this page still offers it.
One listing, two products
The second bullet on this page isn't about a battery. It warns buyers to tell the top covers apart, then states that what ships is only the male or female side discharge plate for a DCH-006 casing. That text is lifted from the listing for the DCH-006 replacement cover, an accessory, and it sits unedited on a page whose title says battery.
Read past it, but note what it tells you about how carefully the seller keeps this page up to date.
The energy rows argue with each other too. The title and the capacity row give 48 volts times 14 amp-hours, which is 672 watt-hours, while the construction bullet says 500 watt-hours. One of those numbers is wrong, and the listing doesn't say which.
The weight row adds a hint. About 52 cells go into a 672 watt-hour 18650 pack, four parallel rows of 3.5Ah cells times thirteen in series, and those bare cells weigh around 2.5 kilograms before any case, wiring, BMS or slide rails join them. The printed 3.2 kilograms sits at the floor for the big claim and fits the smaller one comfortably.
Weigh the box on arrival and meter a full charge, because the two figures disagree by a third of the pack's energy. We'd want that settled before trusting the larger figure for range math.
A five-for-five record, every text badged
Five ratings, five written texts, every one carrying a purchase badge, all five stars. Small records this clean are usually thin, but these texts carry real mileage. One owner has ridden an EP-2 Pro on this pack since spring and reported almost 2,000 miles with it still holding up, after the stock battery stopped holding a charge.
Another reports the original Engwe pack on their bike lasted 2,500 miles and hopes this one matches it.
The service record shows up in the texts too. One buyer has reported that the wrong battery arrived first and the seller sent the correct replacement shortly after. One fit report lands outside the listing's own compatibility list entirely: a discontinued Friend ebike, running the pack with no complaints so far.
Nobody reports a measured capacity test, a water incident, or a failure. Five-for-five on five ratings is a thin record by volume even with every badge in place, so the return window still does real work here.
What the 256.00 buys, and what it does not
At 256.00 for 672 watt-hours you pay about 38 cents per watt-hour, which lands among the most expensive of the 301 packs we track. Our comparison table shows that plainly, and the honest read is this: you're not paying for cheap energy, you're paying for a case that drops into a DCH bay with no rewiring, and for the small club of sellers who make one.
The electrical claims hold together, which the LZIXYM and LOCKBUS listings we rebuilt this month couldn't manage. The 30A BMS allows about 1,440 watts of continuous draw, and the 1000W motor bracket pulls about 21 amps at full load, so the claim sits inside the board's limit with room to spare.
The lock doubles as the power switch, the same setup Lectric XP packs use, and the fitment list covers the Mate X, Bezior XF200, CMACEWHEEL RX20 and Lankeleisi X3000plus alongside the Engwe models. A charger ships in the box, confirmed by a reviewer, though the listing prints no amp rating for it, so no honest charge-time floor can be worked out from the page.
Range and the long game
Range planning needs no promise from the listing. E-bikes usually manage 25 to 75 miles per charge depending on the power level you ride at (Wikipedia, E-bike), so take the range your current battery really delivers and multiply it by the ratio between its watt-hours and 672.
A worn 13Ah stock pack at 624 watt-hours gives this one about an 8 percent edge, which is a like-for-like swap rather than an upgrade.
Lithium-ion chemistry holds up for 400 to 1,200 cycles to the 80 percent convention (Wikipedia, Lithium-ion battery), and the listing claims no cycle count of its own.
The owner yardstick on this page is better than any cycle claim anyway: 2,500 miles from the original pack, and a replacement still going at 2,000 miles. The 1-year warranty row and Amazon's 30-day return window back the first months, and the mileage reports back the rest.
Frequently asked questions
Will it fit my EP-2 Pro?
The listing brackets it for the EP-2 Pro 13Ah version and the Engine Pro 16Ah version, and one owner has confirmed the EP-2 Pro fit with about 2,000 miles since spring. Check the DCH stamp and the 420 by 115 by 58 millimeter footprint against your original pack before ordering.
Does it come with a charger?
Yes. The spec row lists a charger among the included components and one owner has confirmed the charger and two keys arrived in the box. The listing prints no charger amperage, so ask the seller or plan around a standard overnight charge.
Why does the title say 14Ah when the article is named 17.5Ah?
The listing changed. It sold both capacities when we first covered it, and the live page now sells the 14Ah DCH-009 alone. Our URL keeps the old name for link history, and the text describes what the page sells today.
Can I trust the 672 watt-hour figure?
Hold it loosely. The title and capacity row give 672, the construction bullet says 500, and the printed weight sits at the floor for the bigger number. Weigh the box on arrival and meter a full charge to settle it.
What does the review record actually cover?
Five written texts, all badged, all five stars: real mileage on two bikes, a wrong-then-corrected shipment, a fit on an off-list discontinued ebike, and one short power note. No capacity tests, no failures, and no critical text anywhere on the page.
Compare this pack against the field in our ebike battery comparison table, and see how the same brand handles a different case format in our ShunTongDa Lectric XP review.