Shenzhen RYDBATT Electronics Co., Ltd. is one of the leading manufacturers and suppliers of 48v 15.6ah e-bike battery pack in China. Welcome to buy CE approved batteries in stock here and get free sample from our factory. All customized products are with high quality and low price.
48V 15.6Ah E-Bike Battery Pack
Model RYD-4815-ALX053B | 13S6P 18650 | Rear-Rack / Frame Mount
730Wh of lithium energy with a smart split-port BMS, keyed anti-theftlock and a tough, weather-resistant housing - engineered for e-bikes, cargo trikes and 48V mobility platforms.
√ UL 2271 Certified √730 Wh √≤20 A Continuous
√100% Aging Tested
46.8ν
NOMINAL VOLTAGE
15.6Ah
RATED CAPACITY
730Wh
ENERGY
500
CHARGE CYCLES
4.5kg
PACK WEIGHT
why choose us
'lt is awesome to work with Creative. amazingy organized,easy to communicate with. responsive with next iterations,and beautiful work.
High Energy Density
78 matched cells in a 13S6P 18650array deliver 15.6Ah /730Wh inside a compact formed housing.
Smart Split-Port BMS
Charging and discharging run on separate circuits, so the pack keeps full over-charge protection at all times.
Keyed Anti-Theft Lock
A built-in cylinder lock plus an on/off switch keep the pack secured on the rack and protected from tampering.
Long Service Life
Vibration tested on all three axes and rated for 500+ cycles while still holding more than 80% of original capacity.
Range you can actually measure
Every rating below is taken straight from the approved product specification- tested at 25°C with a standard 0.2C charge /discharge profile.
15.6 Ah
Rated capacity at 0.2C, with a guaranteed 14.5Ah minimum measured on every production batch.
730 Wh
Nominal energy at 46.8V. Roughly2.5x the range of a standard 36V 10Ah commuter pack.
≥500
Full charge / discharge cycles at
25°C before capacity drops below
80% of the first-cycle value.
<90 mΩ
Low AC internal resistance keeps voltage sag small and lets the pack deliver current without overheating.
Grade-A cells, properly matched
- INSIDE THE PACK Grade-A cells, properly matched DMEGC INR18650-26E cells - 2.6Ah each, 3.65V nominal, 47g, <25mΩ internal resistance.
- 13S6P configuration- 13 series groups of 6 parallel cells for the balance of voltage and capacity.
- Strict pairing standard- cells matched to s30mAh capacity spread, s5mV voltaged spread and s3mΩ resistance spread.
- Vibration qualified- swept 10-55Hz on X, Y and Z axes for 30 minutes each with no change in performance or appearance.
- Housed and aged- sealed ABS enclosure, 100% aging tested before shipment, shipped at 49.3-50.4V (SOC s70%).
8 layers of protection, always on
Split-port design: charge and discharge, separated
Brand Quality Service
Full specification sheet
| Model | RYD-4815-ALX053B |
| Product code | 8177181306028 |
| Chemistry | Lithium-ion (Li-NMC), cylindrical 18650 |
| Cell | DMEGC INR18650-26E / 26B 2.6Ah · 3.65V · <25mΩ |
| Configuration | 13S6P - 78 cells |
| Nominal voltage | 46.8 V 13 series groups |
| Charge cut-off voltage | 54.6 V charger 53.95V |
| Discharge cut-off voltage | 36.4 V |
| Rated capacity | 15.6 Ah typical / 14.5 Ah minimum @0.2C |
| Nominal energy | ≈ 730 Wh 46.8V × 15.6Ah |
| Max. charge current | ≤ 5 A |
| Max. continuous discharge current | ≤ 20 A BMS rated 30A continuous |
| Internal resistance | < 90 mΩ ACIR, pack level |
| Cycle life | ≥ 500 cycles ≥80% capacity @25°C |
| Charge temperature | 3 ~ 45 °C |
| Discharge temperature | –10 ~ 60 °C |
| Storage temperature | ≤1 month: –20~45°C ≤3 months: –10~30°C ≤1 year: 0~30°C |
| Dimensions (L×W×H) | 407.87 × 94.25 × 131.3 mm maximum, ±1~2mm |
| Weight | 4.5 ± 0.2 kg |
| Enclosure | Formed ABS housing, IP-rated sealed build with keyed lock |
| Safety | Over-charge / over-discharge / over-current / short circuit / temperature cell + MOSFET level |
| Warranty | 12 months or 500 cycles, whichever comes first |
One pack, many 48V platforms
Products Description
Frequently Asked Questions (FAQ)
Q: What are the basic specifications of this battery?
A: Model: RYD-4815-ALX053B.
Chemistry: Lithium-ion (Li-NMC) 18650.
Configuration: 13S6P (78 cells).
Nominal Voltage: 46.8V.
Rated Capacity: 15.6Ah (730Wh).
Weight: Approx. 4.5 kg.
Q: Is this battery compatible with my 48V e-bike charger?
A: This is a 48V system battery with a full charge cut-off voltage of 54.6V. To determine compatibility, check if your existing charger's output voltage is 54.6V, rather than just looking at the "48V" label.
Q: How far can I ride on a single charge?
A: The typical range is tested at 25°C with a standard 0.2C charge/discharge profile. It provides roughly 2.5 times the range of a standard 36V 10Ah commuter pack.
Q: What motor power can this battery support?
A: The maximum continuous discharge current is 20A (BMS rated 30A continuous), supporting up to 500W motors.
Q: What protections does the BMS provide?
A: The battery management system features 8 layers of protection: Over-Charge, Over-Discharge, Charge Over-Current, Discharge Over-Current, Short Circuit, Charge Temperature, Discharge Temperature, and MOSFET Over-Temp.
Q: What type of cells are used inside the battery?
A: It uses Grade-A DMEGC INR18650-26E cells (2.6Ah each, 3.65V nominal). The cells are strictly paired by capacity (±30mAh) and internal resistance (±5mΩ) for proper matching.
Q: Is the battery waterproof?
A: The battery features an IP-rated sealed build with a formed ABS housing and a keyed anti-theft lock. While it can withstand general rain splashes, the exact IP rating code is not explicitly disclosed.
Q: What does the UL 2271 certification mean?
A: The battery is UL 2271 certified by SGS (Certificate No. SGSNA26/CG00063U). UL 2271 is a safety standard for light electric vehicle batteries. Please note that UL 2271 assesses safety, not capacity, internal resistance, or cycle life. (Note: E-bike整机认证对应的是 UL 2849).
Q: Can I charge this battery in cold weather?
A: The operating charge temperature range is 0°C to 45°C. The BMS includes a low-temperature cut-off protection at 0°C to prevent charging in freezing conditions, which could damage the cells.
Q: What is the warranty policy?
A: The warranty covers 12 months or 500 cycles, whichever comes first.
Q: Can this battery be shipped by air?
A: No. With an energy density of 730Wh, it far exceeds the airline limits for carry-on (100Wh) and checked baggage (160Wh). It must be transported via compliant ground or sea freight, with the shipping state of charge (SOC) kept at or below 70%.
Q: What are the charging and discharging ports?
A: It features a split-port design: a DC 5521 port for charging and a 5 PIN / XT60-F port for discharging. This separates the circuits to provide full over-charge protection.
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