Your electric bike’s range has dropped. Maybe it barely climbs the Margalla Road slope now, or the charger sits on green for two hours and you still get half the ride you used to. If the pack is lead acid or an old lithium set, this is normal wear, not a fault in the bike.
The fix is a replacement pack, but the market is full of vague Ah claims and mismatched voltages. This guide explains what actually matters when you buy, then walks through the 48V, 60V and 72V lithium options we build in Islamabad, so you can pick the right one for your daily route.
Quick answer
What are the best replacement batteries for electric bikes in Pakistan?
The best replacement batteries for electric bikes in Pakistan are lithium packs that match your controller voltage: 48V, 60V or 72V, with 20Ah to 60Ah capacity. Built with new EVE cells and a smart BMS, they give 4000+ cycles and a 3-year warranty. Prices from Rs 56,000.
What makes a replacement battery worth buying?
A replacement pack is worth buying when three things line up: the voltage matches your controller, the cells are new and known-brand, and the BMS actually protects the pack. Skip any one of these and you will be back at the shop within a year.
In Pakistan, heat is the silent killer. A pack that performs well in December can sag badly in June if the cells are low grade or the BMS has no temperature protection. So when you compare options, look past the Ah number on the sticker.
One more thing: capacity should follow your daily route, not the biggest number you can afford. A delivery rider doing 60 km a day needs more Ah than someone commuting 12 km to work. Buying too much capacity adds weight and cost for range you never use.
48V, 60V or 72V: which voltage does your bike need?
Your controller decides the voltage. Check the label on the controller or the old battery, or send your bike model on WhatsApp and we confirm it before you book. As a rule: 48V for lighter commuter bikes, 60V for mid-power bikes, 72V for heavier bikes and loaded delivery use.
Higher voltage gives stronger acceleration and better climbing with less heat in the wiring. It does not automatically give more range; range comes from capacity in Ah. That is why a 72V 20Ah and a 48V 30Ah can cover similar distance, but feel very different on a slope.
| Voltage | Typical use | Climbing feel | Capacity range |
|---|---|---|---|
| 48V / 51.2V | Light commuter bikes, short daily rides | Steady on flat city roads | 20Ah to 60Ah |
| 60V / 63V | Mid-power bikes, mixed city and slope routes | Noticeably stronger than 48V | 20Ah to 60Ah |
| 72V / 76V | Heavy bikes, delivery riders, loaded rear racks | Best pull on steep roads | 20Ah to 60Ah |
If your controller allows the higher figure (63V on a 60V bike, 76V on a 72V bike), the pack runs a little more efficiently and holds voltage better under load. If you are unsure, stay with the standard figure. You can read more on this in our guide to 48V vs 72V lithium battery for EV bikes in Pakistan.
How much capacity (Ah) do you actually need?
Pick capacity by your real daily distance, then add a small buffer. Do not size the pack for your longest trip of the year unless you do that trip often.
- 20Ah: short city commutes, school runs, light daily use.
- 30Ah: the common middle choice for mixed commuting, a comfortable step up in range.
- 40Ah: longer daily routes and riders who cannot charge at work.
- 60Ah: full-day delivery shifts and heavy use where charging time is limited.
Remember that range also depends on load, tyre pressure, riding style and how many stops you make. Two riders on the same pack will not get the same distance.
Our listed prices are for the 20Ah pack. Larger capacities are quoted when you book, because the final price depends on the exact pack and fitting.
Best replacement batteries for electric bikes: the three packs we build
We build three voltage families in Islamabad, each from 20Ah to 60Ah, all with new EVE cells and a smart BMS. Here is who each one suits.
48V & 51.2V (from Rs 56,000): the widest-supported standard in Pakistan. It suits lighter commuter bikes and riders who want smooth, efficient running on flat city roads. If your bike came with a 48V controller, this is the direct swap.
60V & 63V (from Rs 67,000): the middle option. It gives noticeably better acceleration and climbing than 48V without the weight and cost of a 72V system. Good for riders who mix flat roads with slopes.
72V & 76V (from Rs 79,000): for heavy bikes and delivery riders carrying a loaded box. The higher voltage keeps the motor pulling on steep roads and long shifts, with less strain on the wiring.
What does a replacement battery cost in Pakistan?
Lithium replacement packs start at Rs 56,000 for 48V 20Ah and go up with voltage and capacity. The price includes the pack, and fitting at our I-9 Islamabad workshop is free.
| Pack | Starting price (20Ah) | Best for |
|---|---|---|
| 48V & 51.2V | Rs 56,000 | Light commuter bikes, short daily rides |
| 60V & 63V | Rs 67,000 | Mid-power bikes, mixed routes |
| 72V & 76V | Rs 79,000 | Heavy bikes, delivery riders |
Compare that with lead acid: a lead acid or gel pack is cheaper upfront but lasts only about 300 to 500 charge cycles, so you replace it several times over the life of one lithium pack rated at 4000+ cycles. Over three years, lithium usually works out cheaper per kilometre, and you carry less weight.
Why do lithium packs fail early in Pakistan?
Most early failures come from heat, wrong charging habits and mismatched components, not from the cells themselves. Fix these and your pack will last.
If your current pack is losing range fast, read our guide on how long an electric bike battery lasts for Pakistani riders before you assume it is dead.
What we check before fitting your new pack
Fitting is not just swapping the box. We inspect the bike, battery and wiring, then road test. This catches problems that would otherwise shorten the life of your new pack.
Which one should you pick?
Match the voltage to your controller first, then choose capacity by your daily distance. That is the whole decision.
- Light commuter, flat city roads: 48V pack. Start at 20Ah or 30Ah.
- Mixed routes with slopes: 60V pack. 30Ah or 40Ah covers most commutes comfortably.
- Heavy bike or delivery shifts: 72V pack. 40Ah or 60Ah if you cannot charge mid-shift.
If you are still unsure, send your bike model on WhatsApp. We confirm the right voltage before you book, because a wrong-voltage pack is the most expensive mistake in this market.
Not sure which pack fits your bike?
Send your bike model, controller voltage (if visible) and daily distance on WhatsApp. We reply with the right voltage and capacity, the price for that pack, and the earliest fitting date at our I-9 Islamabad workshop.
Frequently Asked Questions
How do I know which voltage my electric bike needs?
Check the label on your controller or the old battery. Most bikes run 48V, 60V or 72V. If the label is missing, send your bike model on WhatsApp and we confirm the correct voltage before you book. Fitting a wrong-voltage pack can damage the controller and gives poor performance.
How long does a lithium replacement battery last?
Our packs are rated at 4000+ charge cycles with a 3-year warranty. In real Pakistani conditions, heat and charging habits affect life more than the cells themselves. Charging in shade, avoiding daily deep discharge and using the correct charger will help you get the most from the pack.
Is lithium cheaper than lead acid in the long run?
Yes, usually. A lead acid or gel pack lasts about 300 to 500 charge cycles, so you may replace it several times before one lithium pack reaches 4000+ cycles. Lithium also weighs less, which improves range and handling. The upfront price is higher, but the cost per kilometre is lower.
Can you fit the battery on my bike model?
We fit batteries on Evee, Vlektra, MS Jaguar, Metro, Revoo, Jolta, Road Prince, OKLA, Benling and Crown, and other brands on request. Fitting is free at our I-9 Islamabad workshop and includes a wiring and controller inspection. Nationwide delivery is available across Pakistan.
What capacity should a delivery rider choose?
Delivery riders doing long shifts usually need 40Ah or 60Ah, depending on daily distance and whether they can charge mid-shift. Match the voltage to your bike first, then pick the highest capacity you can comfortably afford. Send your daily kilometres on WhatsApp and we will suggest the right size.
Do you offer a warranty and after-sales service?
Every pack comes with a 3-year warranty and 1 year of free service. We also load test each battery before handover and do a final road test. If you notice any issue, contact us on WhatsApp and we will inspect the pack and the bike wiring.
Final Thoughts
The short version:
- Match voltage to your controller: 48V, 60V or 72V. Never guess.
- Choose capacity by daily distance, not by the biggest number.
- New EVE cells and a smart BMS matter more than a low price.
- Lithium costs more upfront but lasts far longer than lead acid.
- Heat and charging habits decide how long the pack really lasts.
- Prices start at Rs 56,000, with free fitting in Islamabad.
Still comparing? Our 48V vs 72V guide breaks down the difference in real riding terms. When you are ready, message us on WhatsApp below and we will confirm the exact pack for your bike.
Get Your Battery Quote