EVC Research & Development

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Category: EV

YOYO XEV Battery deep discharge

By Strom Trooper

Finally, YOYO XEV has arrived. Battery defect due to deep discharge and cell imbalance. Very simple design with LiFePo4 cells and a 12S configuration, totaling 3 such modules. The modules are compact without contactors. Each weighs 24 kilograms with a total capacity of 10.5 kWh, meaning more than all Toyota hybrids (except the new Prius).…

Is possible to save Kia Soul battery?

By Strom Trooper

Possible, but not without detailed measurement and materials. This Soul, at 100k km, has a State of Health (SOH) of around 50%, which is not accurate; degradation is closer to 70%, or SOH 30%. Many mistakenly believe it’s just one or two cells that are faulty, but after DCIR measurements, it’s clear it’s not just…

Can a Tesla battery be repaired for €1000?

By Strom Trooper

Of course, it can, depending on the severity of the damage. Recently, we mentioned how important it is to inspect and perform a “reseal” on the battery after 6-7 years. Here, the original battery from a 2015 Tesla Model S P85D had water ingress directly into the high-voltage part where the pyrofuse is located. The…

Smart 453EQ fire hazard – Recall needed

By Strom Trooper

Smart 453EQ sa zapaljenim inverterom. Zasto EU ne štiti EU vozače od tvorničkih grešaka? Ne samo na strujićima već i na fosilcima/hybridima. Ona vozila koja su sa razlogom u opozivu jer je tvornička greška, ista je opasnost u Americi, Norveškoj, Kini i u opozivu je, besplatno mjenjaju dio o svom trošku. Kao nissan leaf sa…

32000€ Battery repaired for 500€ – VW eUP

By Strom Trooper

The repair, costing €32,000, was resolved for €500 on a 2015 VW eUp. It generally doesn’t require major interventions and has proven extremely reliable with very few issues. The owner reported the vehicle being immobilized for a couple of months. An authorized service performed a diagnosis and determined a new battery was needed. Due to…

EV Pioneers Achilles’ heel- ION ZERO iMiev OBC

By Strom Trooper

Peugeot Ion, Citroën C-Zero, and Mitsubishi i-MiEV – one and the same vehicle, one of the unbreakable pioneers and one of the few that outlasted most of the competition in that segment. Back in 2012, at the age of 24, while I was dreaming of buying a Tesla that was just being promoted, I didn’t…