Ebike Battery 52V 24Ah — 1248Wh High Capacity Lithium Battery

1248Wh — The Highest Capacity 52V Downtube Format

At 24Ah and 52V nominal, this battery stores 1248Wh of usable energy — the highest capacity figure in the 52V downtube battery range. For a 48V/52V motor system consuming 15–20Wh per kilometre under mixed conditions, that translates to an estimated range of 62–83km per charge from a mid drive system in the 250W–350W range. Higher-output motor systems in the 750W–1500W range draw more energy per kilometre but still deliver real-world ranges that comfortably cover extended commutes, touring stages and full-day recreational rides on a single charge.

20Ah vs 24Ah

The step from the 20Ah format to 24Ah represents a 20% increase in stored energy at the same 52V voltage — from 1040Wh to 1248Wh. For riders who regularly exhaust a 20Ah pack on their typical routes, the 24Ah format provides the reserve capacity that makes every ride more relaxed. For direct comparison, the Battery 52V 20Ah Hailong is the lower-capacity alternative for builds where physical size is a constraint.

52V Platform — The Performance Advantage Over 48V

The voltage advantage of the 52V battery platform over standard 48V operation is real, measurable and immediately felt in the ride. At 52V nominal versus 48V nominal, the same motor receives higher voltage at the same current draw — peak power increases, acceleration sharpens off the line, and top-end speed improves without any hardware changes to the motor or controller. Equally important, higher voltage at equivalent power output means lower current draw — the motor, controller and wiring run cooler under sustained load, reducing thermal stress on every component in the drivetrain.

A 750W motor running on a fully charged 52V 24Ah battery at 58.8V delivers noticeably more performance than the same motor running on a 48V pack at 54.6V. This is the physics of voltage, and it applies consistently across every motor system this battery supports.

Grade A 21700 4800mAh Cells — 1000+ Cycle Premium Quality

The cell specification inside this battery reflects the premium build standard of the pack. Built on Grade A 21700 4800mAh lithium cells — the larger 21700 format delivering higher energy density per cell than standard 18650 — every cell is manufactured to Grade A internal resistance tolerances. Consistent internal resistance means balanced charge distribution across the entire series string, uniform ageing across all cells, and reliable BMS management through every cycle.

The cycle life specification confirms this quality directly — ≥80% capacity retention after 1000 full charge cycles. At one full charge per day, that represents close to three years of daily charging before the pack drops to 80% of its original 1248Wh capacity.

Voltage Window — 58.8V Full Charge to 41V Cut-Off

This battery operates between a full charge voltage of 58.8V and a discharge cut-off of 41V. At full charge the pack delivers its peak voltage — producing maximum motor output and sharpest throttle response at the start of each ride. The 17.8V operating window between these two points delivers the full 1248Wh of energy across a voltage range that any standard 48V or 52V motor controller handles natively. The BMS enforces both limits automatically — overcharge protection and over-discharge protection operating transparently on every cycle without user intervention.

40A Continuous, 100A Peak — Matched for 1500W Motor Systems

The discharge specification of this battery is built for high-performance motor applications. At 40A continuous discharge, the pack sustains up to 2080W of continuous power draw at 52V nominal — well above the 1500W maximum motor rating, providing substantial headroom against BMS protection thresholds under sustained hard riding. The 100A peak discharge current handles high-amplitude current spikes during hard acceleration from a standstill without voltage sag or protective shutdown.

Dimensions — 368 × 156mm

This battery measures 368 × 156mm and weighs approximately 6.6kg. The 156mm width is notably wider than the 123mm width of the 20Ah format — a direct consequence of the higher cell count required for 1248Wh capacity in the 21700 cell format.

The 368mm length is consistent with the standard downtube battery format and fits all standard Hailong-compatible mounting brackets.

BMS — Four-Layer Active Protection

Active cell balancing during charging ensures every cell in the series string reaches the same state of charge — the mechanism that maintains capacity consistency across 1000+ cycles and prevents early divergence between individual cells. All four protection layers operate continuously and transparently, requiring no user maintenance.

Charging — 3A Standard, 5A Fast

This battery charges at a standard rate of 3A, delivering a full charge from empty in approximately 8 hours — suited to overnight charging routines. For faster turnaround, the pack supports a maximum charge current of 5A, reducing full charge time to approximately 5 hours. The BMS terminates charging automatically at 58.8V regardless of charger output. For the complete battery range across all voltages and capacities, visit the Batteries category page.

Warranty and Returns

Every Ebike Battery 52V 24Ah purchased from All4eBikes is covered by a 12-month warranty against manufacturing defects, alongside a 30-day return window for complete purchase confidence.