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Regarding battery health for a 2021 Hyundai Ioniq (2016-2022) Hybrid

4.6K views 18 replies 9 participants last post by  maz  
Smart trickle charger if you have a lead acid battery. HEV with lithium 12 volt battery? There will not be any discharge of the HV battery while away as it is completely disconnected via a relay. PHEV or BEV with a lead acid battery? Disconnect the 12 volt battery from your car, and likewise your traction battery will not discharge. Ideally park it with a 50% traction battery charge.