"Idle" - bad for battery?
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From: New York
2023 AMG EQS
"Idle" - bad for battery?
Say I'm sitting in the car for 45 min to 1 hour (waiting for kids to finish class). Ignition is in (the car says "ready" in green), AC on, car is in park. Battery drops very slowly, if at all. Maybe 1-2 percent over the whole hour. Question: does sitting often like this, I.e. using the battery without spinning the wheels (no regen, among other things) - is this causing damage? Long term maybe? I doubt it but was wondering if anyone had any insight.
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From: Brookshire, Texas & Cat Spring, Texas
2019 SL550/2023 EQS 580 SUV
Just a hunch but I doubt the batteries would be hurt in any way. I thought that if there was not any movement the EQS would power down on its own after 15 minutes or so. Mine gives me a warning on the dash board.
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Since battery power consumption is low, also wear on the battery (and the high voltage system) is minor. The HVAC system wear would be more or less the same as if you were driving (don't think you were concerned about HVAC).
Spinning wheels would mean more power consumption and more wear (but that is what the car is built for). Recuperation is not healthier than driving the car without recuperation or keeping the car ready when stationary. Recuperation charges the battery and causes battery wear just like charging the car from a charger. Not that much but the sign is negative, not positive. Recuperation is healthier than using normal brakes but this is not relevant when stationary. Of course recuperation is healthy for the wallet.
Spinning wheels would mean more power consumption and more wear (but that is what the car is built for). Recuperation is not healthier than driving the car without recuperation or keeping the car ready when stationary. Recuperation charges the battery and causes battery wear just like charging the car from a charger. Not that much but the sign is negative, not positive. Recuperation is healthier than using normal brakes but this is not relevant when stationary. Of course recuperation is healthy for the wallet.
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Say I'm sitting in the car for 45 min to 1 hour (waiting for kids to finish class). Ignition is in (the car says "ready" in green), AC on, car is in park. Battery drops very slowly, if at all. Maybe 1-2 percent over the whole hour. Question: does sitting often like this, I.e. using the battery without spinning the wheels (no regen, among other things) - is this causing damage? Long term maybe? I doubt it but was wondering if anyone had any insight.
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Say I'm sitting in the car for 45 min to 1 hour (waiting for kids to finish class). Ignition is in (the car says "ready" in green), AC on, car is in park. Battery drops very slowly, if at all. Maybe 1-2 percent over the whole hour. Question: does sitting often like this, I.e. using the battery without spinning the wheels (no regen, among other things) - is this causing damage? Long term maybe? I doubt it but was wondering if anyone had any insight.
Last edited by c4004matic; Jan 9, 2023 at 12:48 PM.
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2023 Mercedes ESQ SUV 580 ● 2021 Volvo XC40 Recharge
My EQS is still on order. But my experience with my Tesla Model S and my wife's Volvo XC40 Recharge is that charging up to 90% regularly is not an issue with those 2 cars. Is the EQS different and the manufacturer recommends charging to up to 80%?
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I do not think the EQS battery is very different from the others, although the exact anode construction is critical. Different manufacturers have different amounts of "safety" at the top and bottom. It is well known that charging to the top and bottom degrades batteries faster than when charging and discharging them part of the way. I do not know the exact tradeoffs (for example - charging 100 times to 100% vs. charging 100% to 90% results in a decrease of available charge by x%. ) My impression is that 1.) the car manufacturers have not shared this type of data with the consumers and 2.) we are all being very conservative. Since Teslas have been around for the longest, there is probably a lot of data available on battery longevity and degradation from Tesla owners. Four years ago, I spoke to a knowledgeable Audi designer/engineer who thought we'd all replace batteries after ten years instead of rebuilding engines.
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2023 Mercedes ESQ SUV 580 ● 2021 Volvo XC40 Recharge
perlfather, Thanks for the reply.
The reason for my question is that I've noticed many posts here talking about charging up to 80% and I was wondering if that is what MB recommends. My experience with Tesla is that they recommend up to 90%.
The reason for my question is that I've noticed many posts here talking about charging up to 80% and I was wondering if that is what MB recommends. My experience with Tesla is that they recommend up to 90%.
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From: NE KY, on the Ohio River
2018 S560; 2022 EQS450+
perlfather, Thanks for the reply.
The reason for my question is that I've noticed many posts here talking about charging up to 80% and I was wondering if that is what MB recommends. My experience with Tesla is that they recommend up to 90%.
The reason for my question is that I've noticed many posts here talking about charging up to 80% and I was wondering if that is what MB recommends. My experience with Tesla is that they recommend up to 90%.
Super Member
Joined: Nov 2021
Posts: 825
Likes: 263
From: NE KY, on the Ohio River
2018 S560; 2022 EQS450+
