ShunTongDa Reention Dorado 48V 17.5Ah Electric Bike Battery: Worth $310 for NCM & Aventon Riders in 2026?
The ShunTongDa Reention Dorado 48V 17.5Ah delivers 840Wh — 35% more capacity than the stock 624Wh pack — at $0.37/Wh, making it a cost-effective range upgrade for compatible NCM and Aventon electric bikes.
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Best For
How this e-bike scores for different riding styles
The 30A max discharge current and 1000W motor compatibility support moderate performance applications. The 840Wh capacity enables sustained high-power output, though this is a supporting component rather than a performance product itself.
The 30A BMS and support for 500W-1000W motors suggest adequate power delivery for cargo applications. The high 840Wh capacity provides sufficient energy for hauling loads over distance when paired with appropriate bikes.
This is a replacement battery, not a complete e-bike. It can enhance commuting by providing extended range when paired with compatible bikes like NCM Moscow or Aventon Pace 500, but offers no standalone commuting value.
The 840Wh capacity (48V 17.5Ah) supports leisurely rides with extended range. The USB charging port adds convenience for phone charging during outdoor activities, but this is an accessory product only.
As a battery accessory, it provides IP65 water resistance for light rain exposure and supports motors up to 1000W. However, it cannot be evaluated for off-road capability since it's not a complete bike.
The battery weighs approximately 15-18 lbs based on capacity and measures 18 inches long, making it moderately portable. However, this score is limited as portability depends on the host bike, not the battery alone.
Our Verdict
The ShunTongDa Reention Dorado 48V 17.5Ah e-bike battery provides 840Wh of usable capacity at $310, replacing standard 624Wh packs with a 35% energy increase. For NCM Moscow and Aventon Pace 500 riders, that translates to a meaningful extension of pedal-assist range without swapping the entire electric bike drivetrain.
The 30A BMS handles overcharge, over-discharge, and short-circuit protection. At 800-1000 rated charge cycles over roughly five years of normal commute or trail use, longevity is adequate but trails premium cells that reach 1500+ cycles. The 48V system supports motors from 250W up to 1000W, covering most single-motor electric bicycle configurations.
Practical additions include an LED charge indicator and a USB output port — useful for topping up a phone during a long city riding session. IP65 water resistance provides protection against light rain and road spray, though it should not be submerged. The Reention Dorado mounting base installs on compatible frames without modification.
Charge time sits at 5-6 hours, which rules out quick top-ups before afternoon rides and favors overnight charging. The 30A discharge ceiling limits acceleration headroom on high-torque dual-motor builds but is sufficient for single-motor setups up to 1000W where torque and speed demands stay within spec.
At $310, the ShunTongDa Reention Dorado 48v17.5ah L18inch costs roughly half the price of comparable-capacity OEM replacements. Riders who verify frame compatibility with the 18-inch length get a high-capacity electric bicycle battery at a genuinely competitive cost per watt-hour.
What We Like
- 840Wh capacity (48V × 17.5Ah) delivers ~35% more range than stock 624Wh packs on NCM Moscow and Aventon Pace 500 electric bikes
- 30A BMS provides overcharge, over-discharge, and short-circuit protection across 800-1000 rated charge cycles
- Supports 250W-1000W motors, covering the full range of single-motor electric bicycle drivetrains
- USB output port lets riders charge devices during commute or trail rides without carrying a separate power bank
- IP65 water resistance protects against light rain and road spray during city riding and wet-weather commutes
- At $310 ($0.37/Wh), costs roughly 40-50% less per watt-hour than OEM-branded 48V replacement batteries
What Could Be Better
- No UL or CE certification listed, unlike premium replacement batteries that carry third-party safety ratings
- 5-6 hour charge time is 2 hours slower than fast-charge batteries (3-4 hours), preventing quick top-ups before afternoon rides
- 800-1000 charge cycle rating falls short of premium cells rated at 1500+ cycles, reducing long-term cost-per-mile value
- 30A discharge limit restricts use with dual-motor or high-torque builds requiring 40A+ for peak acceleration and hill climbing
- Single 18-inch length option means riders with shorter or longer frame battery channels must verify fit before purchase
Standout Features
Frequently Asked Questions
Common questions aboutReention Dorado Ebike Battery Fit for Ncm Moscow/Aventon Pace 500 E-Bike Battery 48V 14Ah 672Wh 13Ah 624Wh Lithium Ion Pack 250W-1000W Motor for Electric Bicycle (48v17.5ah L18inch)
What bikes is this battery compatible with?
This battery fits NCM Moscow, Aventon Pace 500, and other e-bikes using the Reention Dorado mounting system with 5-hole discharge connectors. Check your current battery dimensions and connector type before ordering.
How much range will this battery provide?
The 840Wh capacity typically provides 40-80 miles depending on motor power, rider weight, terrain, and assist level. A 500W motor on flat terrain could reach 70+ miles on eco mode.
How long does the battery last before replacement?
The battery offers 800-1000 charge cycles over approximately 5 years. If you charge twice weekly, expect 4-5 years of service before capacity drops below 80%.
Can I charge the battery while it's mounted on the bike?
Yes, the battery charges on or off the bike using the included 54.6V charger. The 5-6 hour charge time applies either way. The safe lock prevents theft during charging.
Is this battery safe to use in wet conditions?
The IP65 water resistance protects against light rain and splashing. You can ride in light rain briefly, but avoid heavy downpours or submersion. Always dry the battery after wet rides.
Best For
How this e-bike scores for different riding styles
The 30A max discharge current and 1000W motor compatibility support moderate performance applications. The 840Wh capacity enables sustained high-power output, though this is a supporting component rather than a performance product itself.
The 30A BMS and support for 500W-1000W motors suggest adequate power delivery for cargo applications. The high 840Wh capacity provides sufficient energy for hauling loads over distance when paired with appropriate bikes.
This is a replacement battery, not a complete e-bike. It can enhance commuting by providing extended range when paired with compatible bikes like NCM Moscow or Aventon Pace 500, but offers no standalone commuting value.
The 840Wh capacity (48V 17.5Ah) supports leisurely rides with extended range. The USB charging port adds convenience for phone charging during outdoor activities, but this is an accessory product only.
As a battery accessory, it provides IP65 water resistance for light rain exposure and supports motors up to 1000W. However, it cannot be evaluated for off-road capability since it's not a complete bike.
The battery weighs approximately 15-18 lbs based on capacity and measures 18 inches long, making it moderately portable. However, this score is limited as portability depends on the host bike, not the battery alone.
Scores
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