Ebike Battery 48V 22.5Ah — 1080Wh High Capacity Lithium Battery

1080Wh — Serious Long-Range Capacity

This battery stores approximately 1080Wh of usable energy — a meaningful capacity step above the 960Wh delivered by the 20Ah format. For a 48V motor system consuming 15–20Wh per kilometre under mixed riding conditions, 1080Wh translates to an estimated range of 54–72km per charge. For riders who regularly push the limits of a smaller pack — those who arrive home with low battery after a longer commute, or who want range in reserve for unplanned detours and extended routes — the 22.5Ah capacity delivers the buffer that makes every ride more confident.

20Ah vs 22.5Ah

Compared to the Ebike Battery 48V 20Ah at 960Wh, this format adds 120Wh of additional capacity — a 12.5% range increase in the same voltage platform. For riders who are consistently running their 20Ah pack down to low reserve, the 22.5Ah is the natural upgrade. For riders considering a step up to 52V for additional performance alongside higher capacity, the Battery 52V 20Ah Hailong delivers 1040Wh at elevated voltage with sharper motor performance across the power range.

Grade A 21700 4500mAh Cells — Premium Specification

This battery is built on Grade A 21700 4500mAh lithium cells — a premium cell specification that delivers higher energy density per cell compared to standard 18650 formats, enabling 1080Wh capacity within a compact downtube form factor. Grade A cell selection means every cell in this pack is manufactured to the tightest internal resistance tolerances — consistent performance across every cell, even ageing across the full pack, and reliable BMS management through every charge cycle.

The cycle life specification reflects this quality directly: 800–1000+ cycles before capacity degrades to 80% of original rated capacity. At one full charge per day, that represents over two years of daily riding at the conservative end — and significantly more under typical partial-charge usage patterns.

40A Discharge Current — Matched for High-Output 48V Systems

The 40A discharge current specification is a critical differentiator from the compact-format 30A BMS packs in the lower-capacity range. At 48V nominal, 40A continuous discharge delivers up to 1920W of sustained power draw — well above the output of any standard 48V motor system up to 1500W, providing substantial headroom against BMS protection thresholds under sustained hard riding. This means the battery delivers clean, consistent power across the full output range of any compatible 48V motor without the current limiting that would occur if the BMS rating were closer to the motor’s peak draw.

Charging Voltage and Time — 54.6V, 7.5 Hours

This battery charges to a full charge cut-off voltage of 54.6V — the standard termination voltage for 48V lithium-ion packs. With a charging time of approximately 7.5 hours from empty, this pack is optimally suited to overnight charging routines that deliver a full 1080Wh capacity every morning without rushing the charge rate or stressing the cells. The BMS terminates charging automatically at 54.6V regardless of charger output, eliminating overcharge risk with any compatible charger within the supported current range.

BMS Protection — Four-Layer Active Management

The integrated BMS provides four layers of active cell protection across every charge and discharge cycle:

Active cell balancing during charging ensures every cell in the series string reaches the same state of charge at the end of each cycle — the key mechanism that maintains capacity consistency over 800–1000+ cycles and prevents early divergence between individual cells.

Durable Heat-Resistant Casing

The durable, heat-resistant casing serves two practical functions in real-world riding conditions. Heat resistance slows thermal transfer to the internal cells during sustained high-load riding in warm conditions and under direct sun exposure — contributing to thermal stability that protects cell chemistry and supports long-term cycle life. The durable outer construction provides mechanical protection against vibration and incidental impact from daily riding on urban roads, gravel surfaces and mixed terrain. Standard charge and discharge connectors ensure compatibility with standard chargers and motor controller wiring across the broadest range of 48V conversion setups.

Compatible Builds and Applications

This battery is compatible with most 48V eBikes and DIY conversion setups. It is equally suited to mid drive conversions using BAFANG BBS02 750W or BBSHD 1000W systems, high-output hub motor builds running 48V motors from 500W to 1500W, and custom builds where long range and sustained power delivery are the primary design requirements. The 40A discharge rating sustains full output from any of these motor systems without BMS protection issues under normal riding conditions.

For the complete range of 48V and 52V compatible conversion kits across all motor formats and power levels, visit the Conversion Kit category page. For the full battery range across all voltages and capacities, visit the Batteries category page.

Warranty and Returns

Every Ebike Battery 48V 22.5Ah purchased from All4eBikes is covered by a 12-month warranty against manufacturing defects, alongside a 30-day return window for complete purchase confidence.