A dead Aventon or NCM pack no longer means a dealer-priced replacement. The SDTYYP 48V 14Ah matches the original 672Wh capacity, slots into the same frame cavity, and costs a fraction of the official pack. Check your connector against the listing first, because fitment is the whole game with replacement packs.
Specs and Value
The core spec is 48V at 14Ah, which works out to 672Wh. That is the same capacity as the factory Aventon and NCM packs. The 25A BMS monitors voltage and temperature across the cells and caps current draw, protecting the pack from overheating. Run a motor beyond 750W and the BMS will throttle output, which shows up as slower climbing under heavy load.
The included 54.6V 2A charger takes about seven hours from empty. That is slow, and it means a dead pack the night before work is a real problem. The upside is cell longevity: gentle charging is one reason budget packs survive more cycles than buyers expect.
The 48v system is standard for many mid-range ebikes. They provide better acceleration than older 36V systems. The 14Ah capacity provides a balance between weight and range. You're not getting massive cells like those found on long-distance touring ebikes, nor are you getting minimal cells like those usually used on entry-level budget models. This setup provides a specific volume of energy that fits within standard frame space. It's a good middle ground for daily commuters and weekend trail exploreers.
Design and Fitment
The integrated down-tube design is one of the most important features. It slots into the frame cavity and matches the original look on the Aventon Pace 350, Pace 500, and NCM Moscow. The plastic shell is plain but not cheap-feeling. It looks like it came directly from the factory. The key lock secures the pack to the frame, which matters when you park in public. Batteries are the most-stolen part of an ebike.
The side-mounted LED indicator shows remaining charge at a press, so you are not plugging the pack into the bike just to check the level.
The USB output keeps a phone charged on the move. If your GPS is your phone, that is not a gimmick. A dead phone deep in the hills is a walk home, and this pack keeps that scenario off the table.
The rigid casing shrugs off the knocks of daily use, and the tight fit keeps the pack from rattling in its cradle on rough pavement. Loose batteries develop connection problems over time. This one stays put.
Before ordering, measure your current pack or pull it and read the label. Integrated batteries vary by model year, and a 5mm difference in height means the cover will not close. The listing dimensions are 390 x 104 x 65mm. Ten minutes with a tape measure saves a return shipment.
Real-World Range and Power
Range is always related to how you ride. With 672Wh, you have a lot of energy available to you. Flat ground stretches the range, hills and throttle shrink it.
The seven-hour charge time on the 2A charger is the real bottleneck. Overnight charging is not optional, it is the schedule. Top up after each ride rather than running it to empty. Lithium packs age fastest when held at very low charge, and commuters who habitually drain to zero lose capacity a season earlier than those who charge at 20 to 30 percent.
The 25A BMS handles the stock 350W to 500W motors in these bikes without breaking a sweat. An upgraded motor above 750W will push against the current limit, and the BMS will throttle rather than let the cells cook. That is a safety feature worth appreciating. It means the pack protects itself instead of cooking its own cells.
Real-world range lands at 30 to 50 miles for lighter riders on flat ground, dropping to 20 to 25 with cargo or hills. That is normal for 672Wh, no better and no worse. The energy density of this battery is standard for a battery of this size. There are no magic numbers here. You get what physics allows from a standard lithium-ion pack. It provides consistent performance profile that meets your expectations based on advertised capacity.
What Amazon Reviewers Are Saying
The review count is small but consistent. Owners on the listed Aventon and NCM models report the fitment matches and the range lands near the advertised figure. The recurring complaints are shipping damage, these packs are heavy and fragile in transit, and the slow seven-hour charge.
Installation praise is the other consistent note: pull the old pack, slide the new one into the cradle, and the connectors line up. A replacement battery that needs no wiring work is exactly what you want.
Who Should Buy This
Buy this if your Pace 350, Pace 500, or NCM Moscow pack died and you do not want to pay brand-name money for the fix. The capacity matches, the fit matches, and the only real tax is the slow charger. Skip it if your frame takes a different housing size or if you need fast turnaround between rides, since the seven-hour charge defines your rhythm.
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
Will This Fit My Aventon Pace 500?
The listing names the Pace 500 among compatible models. Because this is an integrated battery, it only fits if your current pack measures the same 390 x 104 x 65mm, so measure yours before ordering.
Does It Include a Charger?
Yes, a 54.6V 2A charger ships with the pack. Expect five to seven hours from empty, with auto-shutoff to prevent overcharging.
How Many Watt-Hours Does It Store?
672Wh, from 48V times 14Ah. That matches the factory pack capacity and covers daily commuting plus recreational rides without range anxiety.
What Motor Sizes Can It Handle?
The manufacturer rates it for 250W to 700W motors. It runs the Aventon's 350W and the Pace 500's 500W motors comfortably. Anything larger than 700W is outside the intended use.
How Long Will It Last Before Replacing?
The listing claims 80% capacity retention after 800 cycles. With daily riding, that works out to roughly three to five years before range loss becomes noticeable.
Is It Compatible With the NCM Moscow?
Yes, the listing names the NCM Moscow. As with any integrated pack, confirm the housing dimensions match before ordering.