Original price was: £410.00.£335.00Current price is: £335.00.
Ebike Battery 52V 24Ah featuring a built-in BMS for safety and efficient charging, it delivers high capacity and long range,
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Maximum range meets maximum voltage. The 52V 24Ah battery is a premium, high-capacity lithium-ion downtube battery pack delivering 1248Wh of stored energy from Grade A 21700 4800mAh cells — engineered for 52V and 48V motor systems rated from 250W up to 1500W. With a 40A continuous discharge current, a 100A peak output, and a cycle life of ≥80% capacity after 1000 cycles, this is the 52V 24Ah ebike battery for builders who want the absolute highest capacity available in a 52V downtube format, combined with the performance advantages that 52V voltage delivers over standard 48V systems. The 52V 24Ah battery is the energy source for builds that demand serious range, sustained high-power output, and premium cell quality that holds its specification across hundreds of charging cycles.
At 24Ah and 52V nominal, the 52V 24Ah 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. The 52V 24Ah ebike battery is the correct choice for riders who want to eliminate range as a constraint entirely — filling the tank fully and riding without battery anxiety across the longest routes their build is capable of.
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.
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 pack supports.
The cell specification inside this 52V 24Ah ebike 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 in this pack 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. Under typical partial-charge usage patterns, practical service life extends further still. This is a 52V battery built for the long term.
The 52V 24Ah 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 the 58.8V upper limit and the 41V lower limit automatically — overcharge protection and over-discharge protection operating transparently on every cycle without user intervention.
The discharge specification of this battery pack 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. For hub motor builds at the 1500W performance level, the E-Bike Conversion Kit 1500W BLACK is a directly compatible motor system that benefits directly from the 52V voltage advantage this 52V 24Ah ebike battery provides. For the full range of compatible conversion kits, visit the Conversion Kit category page.
The 52V 24Ah 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. This wider profile must be verified against your frame’s down tube clearance before ordering. Mountain bike and hybrid frames with wider down tube profiles typically accommodate the 156mm width without issue, but smaller road and city bike frames with tighter down tube dimensions may not. Verify your frame’s available mounting width against the 156mm dimension before purchasing. The 368mm length is consistent with the standard downtube battery format and fits all standard Hailong-compatible mounting brackets.
The integrated BMS in the 52V 24Ah ebike battery provides four-layer active protection across every charge and discharge cycle. Overcharge protection terminates charging at 58.8V. Over-discharge protection enforces the 41V cut-off. Overcurrent protection limits discharge under fault conditions. Short-circuit protection provides immediate shutdown on wiring or connector failure. 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.
The 52V 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.
| Spec | Detail |
|---|---|
| Compatible Motor Power | 48V / 52V, 250W–1500W |
| Nominal Voltage | 52V |
| Rated Capacity | 24Ah |
| Energy | 1248Wh |
| Cell Type | Grade A 21700 4800mAh |
| Cycle Life | ≥80% after 1000 cycles |
| Weight | ~6.6kg |
| Dimensions | 368 × 156mm |
| Standard Charge Current | 3A |
| Max Charge Current | 5A |
| Max Continuous Discharge | 40A / 40A |
| Peak Discharge | 100A / 100A |
| Charge Cut-off Voltage | 58.8V |
| Discharge Cut-off Voltage | 41V |
| Format | Downtube |
The 52V 24Ah battery is the complete, maximum-capacity 52V downtube energy source for builders who demand the longest possible range, premium Grade A 21700 cell quality, and the full performance advantage of 52V operation. 1248Wh of stored energy, 40A continuous discharge, 100A peak output, 1000-cycle longevity, and four-layer BMS protection — the 52V 24Ah ebike battery is the premium battery pack for serious 48V and 52V e-bike builds that refuse to compromise on range or performance.
Eddy –
It is better than I was expexted
Darren (verified owner) –
Very speedy shipping and delivery. Battery has 260 miles on it so far and is holding up well.