u/bobweaver112

Every stinking year we get hit with this shit.

Last week, my wife and I purchased a 2026 CX-70 PHEV and love the car so far. One thing I cannot seem to get a consistent answer on however is the proper charging level. I called my dealership’s service department and was advised that I should charge it to 100%. I also called Mazda corporate customer service who reviewed their documentation and told me that PHEVs are good to charge to 100%.
I watched a YouTube video from Mazda itself that said PHEVs should charge to 100%.

However, my Mazda app says:

“When it comes to your PHEV, it's important to maintain battery life. Mazda recommends setting a maximum charge limit of 90% to promote long-term battery health. Regularly charging the battery to 100% will decrease the health over time.”

I have read before that PHEVs have built-in “buffers” to allow charging to 100%, but I can’t find this language anywhere for the CX-70. We intend to drive this car well past the warranty period and want to make sure we are doing right by the battery. Help!