A research carried out in March revealed that the bigger 30 kWh Nissan leaf battery pack had a better fee of battery degradation than the 24 kWh.
The research concerned 283 Nissan Leafs, wherein 82 of them operated on the 30 kWh battery packs. Based on the findings, in a gaggle of 5 automobiles with the bigger battery pack, 4 of them confirmed a degradation fee of 3 times sooner than the 24 kWh pack.
Excellent news to the leaf house owners is that Nissan has introduced a software program replace that would scale back the irregular cell capability loss.
On a report that was initially printed by the clear fleet report, the replace will repair the battery controllers, from which the issue appears to originate.
The report notes that the accelerated energy loss was attributable to a identified downside of the battery controllers miscalculating the accessible battery cost and the remaining automotive vary, a problem that the software program replace is anticipated to repair.
Initially, among the leaf mannequin house owners thought that the completely different cooling system of the battery pack, wherein the automotive makes use of air as an alternative of liquid was the reason for the degradation.
It’s vital to notice that it’s the passive air cooling system that made the Nissan leaf fashions approach cheaper than different EVs, making it essentially the most offered electrical automobile in historical past.
Over 300,000 models have been offered to date.
Nissan redesigned their battery pack chemistry in 2015, introducing a brand new system they referred to as “lizard cell” that was stated to be high-temperature resistant. Excessive temperature is the first reason behind battery capability degradation.
These 2016/17 Nissan leaf house owners who rushed to interchange their battery packs with the newly redesigned variations reported the identical challenge of excessive fee of energy loss. The redesigns had been coated below the powertrain guarantee by the corporate.
In 2018, Nissan began supplying refurbished battery packs within the Japanese market, at a considerably cheaper price of $2800 than that of the redesigned model of the identical.
U.S Nissan leaf house owners are but to know what’s in retailer for them, as Nissan hasn’t introduced an replace or a alternative for that market. American Leaf house owners could also be trying ahead to changing their 24 kWh battery packs with the bigger model of 30 kWh.
The March report didn’t contact on the 40 kWh battery packs.