2024 ES 300H trickle charging battery

[aneridgway]

We will be away for 4 months, just bought the hybrid and not sure how to keep the Battery charged. We typically use the trickle charger to charge the 12v Battery in the truck. Do we or must we charge the Battery under the hood?  will it go flat? any suggestions will be appreciated. Leaving in 4 days. Thanks

[NemesisUK]

Put the 12v Battery on the trickle charger. $ months is a long time, the traction Battery may well lose charge. Follow Lexus recommendations.

 

Maintenance of hybrid battery.pdf

[IS300FSPORT]

The easy option is to trickle charge the 12v Battery assuming its in a locked up garage or alternatively disconnect the negative Battery & lock the car manually (disconnecting the negative cable takes away the ability to lock the car with your remote) 

If your car is under warranty the main high voltage Battery is covered so you shouldnt need to worry & I believe you should be good to go upon return, tip try to park it in a state of charge of 80% or more as many charge bars displaying as possible. So should it gradually drop voltage in them 4 months it won't deplete to the point it won't start. 

Iv looked into this before now & the main high voltage  Battery is robust not usually an issue as people have started up salvage cars after being sat for years in a scrapyard & they fire up with a good 12v Battery.

My biggest concern would be rodent damage finding a way in and getting comfortable chewing the cables. If you have a good friend, family or neighbour ask them if they will start it every 2weeks or so keep it active reducing chances of any rodents nesting.