The single most common EV question in Nigeria is: will the battery survive the heat? Field data from over 6,000 EVs operating in tropical Asia and West Africa gives a clear answer.
The 80/20 rule that adds years
Charging to 80% (not 100%) for daily use and avoiding letting the battery sit below 20% extends useful life by 25–40% in tropical conditions.
LFP vs NMC — which handles heat better?
LFP (lithium iron phosphate) batteries — used in most CIG and Wuling entry vehicles — tolerate heat and full charges much better than NMC packs. They give up some peak range for dramatically longer service life.
Real degradation numbers
- After 3 years / 60,000 km: 3–6% capacity loss
- After 5 years / 100,000 km: 7–10% capacity loss
- After 10 years / 200,000 km: 15–22% capacity loss
"A well-treated modern EV battery will still deliver 78–85% of its original range at the ten-year mark."