Electric Bike Battery Guide: Types, Life and Warranty
The battery is the most costly part of an electric bike and decides how long the bike stays useful. Here is what each battery type means, how long it lasts and what the brands promise.
Updated 14 November 2026
Battery types in Pakistani e-bikes
- Dry gel / lead-acid: the cheapest packs, on bikes like Jolta JE-70D Electric Bike and Pakzon PE-70D Electric Bike. Battery warranty only 3 months.
- Graphene: a lead-acid battery with a graphene additive, not a true graphene cell. Cheaper and heavier than lithium; most come with about 18 months battery warranty.
- Lithium LFP (LiFePO4): lighter, charges faster and lasts much longer. Now required in the Punjab scheme rules and used on most new 2026 models.
- Lithium NMC: light with strong power, used on models such as the Okla OMIGO and the Jinpeng range.
How long does an e-bike battery last?
Makers claim about 300 to 1,000 charge cycles for graphene packs and 1,100 to 3,500 cycles for LFP packs. A Pakzon note from 2023 put a gel pack at about 2 years of life against about 7 years for its LFP pack.
Real life depends on heat, deep discharge, the charger and load. Running the battery flat again and again shortens it.
Battery warranty by brand
- MS Jaguar E-70 and E-125 (LFP): 5 years
- Crown and Benling LFP models: 4 years or 48,000 km
- Yadea T5 Lithium and Velax: 4 years or 50,000 km
- Inverex GO and Okla LFP models: 3 years (terms apply)
- Metro: 36 months lithium, 24 months nano carbon fiber graphene
- Most graphene scooties: about 18 to 20 months
Metro's warranty does not cover overcharging, physical damage, fire or improper fast charging. Always keep the invoice and warranty card.
Why the lithium version costs more
The battery is more than 30% of the price of an e-bike, so the lithium version of the same scooty costs more:
- Evee Gen-Z (Graphene) Electric Scooty Rs 106,700 vs Evee Gen-Z (Lithium) Electric Scooty Rs 137,900
- Metro T9 Sport Electric Scooty Rs 110,400 vs Metro T9 Sport (Lithium) Electric Scooty Rs 147,000
Brands do not publish replacement battery prices; ask the dealer before you buy so you know the later cost. Compare all lithium electric bikes and graphene electric bikes.
Battery care tips
- Use the charger that came with the bike or a brand-approved one. Metro says the charger should be rated 0.2C to 0.5C of the battery Ah.
- Let the bike cool down after a hot ride before charging.
- Avoid deep discharge; top up before the battery is empty.
- Keep water away from the battery, controller and charging port.
Battery replacement and chargers
Sooner or later every e-bike needs a new battery. Buy it from the brand's dealer so the voltage, size and connectors match, and keep the charger that came with the bike. If the charger fails, get the same model from the dealer instead of a generic one.
The problems and maintenance guide explains charging faults, and the electric bike motor guide explains how battery voltage affects speed.
