Most two-wheeler battery conversations in India start in the wrong place: energy density. It is the number on the brochure, it is the number the cell vendor leads with, and for a commercial fleet it is rarely the number that decides anything.
The number that decides things is cycle life, because a commercial pack is a consumable with a replacement schedule, and that schedule is what shows up in the operating cost.
The gap in real packs, not in theory
Set two of our own two-wheeler packs side by side:
| Pack | Chemistry | Nominal | Capacity | Rated cycle life |
|---|---|---|---|---|
| 48V 25Ah E-Scooter | NMC | 48V | 25Ah | 1,200+ @ 80% DOD |
| 48V 28Ah Prismatic | LiFePO4 | 48V | 28Ah | 2,500+ @ 80% DOD |
| 60V 29Ah E-Scooter | NMC | 60V | 29Ah | 1,200+ @ 80% DOD |
| 60.8V 30Ah Prismatic | LiFePO4 | 60.8V | 30Ah | 2,500+ @ 80% DOD |
Same voltage class, comparable capacity, roughly double the rated cycle life on the LFP side.
That ratio is not a MEHAR peculiarity. It is a property of the chemistry: lithium iron phosphate has a more mechanically stable cathode lattice, so it tolerates repeated lithium insertion and extraction with less structural degradation than a nickel-manganese-cobalt cathode.
What the ratio means for a delivery fleet
Take a last-mile rider doing two full cycles a day, six days a week — roughly 625 cycles a year.
- NMC at 1,200 cycles: about two years before the pack reaches its rated end of life.
- LFP at 2,500 cycles: about four years.
The LFP pack does not need to be cheaper to win. It needs to be less than twice the price, and for most commercial duty cycles it comfortably is. The fleet that buys on headline pack price and ignores cycle life pays for the difference twice.
When NMC is the right answer
NMC is not the weaker chemistry. It is the denser one, and density buys range and mass.
Our 73.6V 40Ah high-performance motorcycle pack uses a high-density NMC box module, rated 1,500+ cycles at 80% DOD. For a performance motorcycle, that is the correct trade: the vehicle needs the energy in the mass and volume available, and it will not see a commercial two-cycle-a-day schedule.
Choose NMC when:
- Range or vehicle mass is the binding constraint.
- The duty cycle is personal rather than commercial — one cycle a day or less.
- The package envelope cannot accommodate the volume LFP needs for equivalent energy.
Choose LFP when:
- The vehicle earns money and charges more than once a day.
- Pack life over three or more years is part of the purchase decision.
- The vehicle operates in sustained high ambient temperatures.
The thermal argument, stated carefully
LFP has a higher thermal runaway onset temperature than NMC. This is a real and meaningful difference, and it matters in Indian conditions where ambient temperatures and charging in unventilated spaces are routine.
It is not, however, a licence to treat an LFP pack as inherently safe. Thermal behaviour at pack level is determined by cell quality, busbar construction, enclosure design and BMS protection logic as much as by cathode chemistry. A poorly constructed LFP pack with cold-soldered joints is more dangerous than a well-built NMC pack.
Our commercial two-wheeler packs are rated for a -10°C to 55°C operating range, which is the band that matters for Indian commercial use.
Entry-level cylindrical packs
Our e-cycle range — 36V in 7.5Ah, 10Ah and 15Ah — uses cylindrical Li-ion and is rated 800+ cycles at 80% DOD. That is the right economics for light personal mobility and the wrong economics for a commercial fleet. If a vehicle earns revenue, do not specify an 800-cycle pack for it.
How to actually decide
Work out the cycles your vehicle will see per year, divide the pack's rated cycle life by that figure, and compare the result against how long you intend to keep the vehicle. If the pack dies before the vehicle does, you have specified the wrong chemistry — regardless of what the energy density says.
If you want this worked through against your own duty cycle and volumes, the application engineering desk will do it with you.