bmwlexus09

I drive a 2015 IS that had the battery replaced in April 2018. Fast forward to 2020, service advisor said that battery failed test and recommended replacing again. I was told that Lexus did study and found that the battery life for Texas is around 2 ~ 3 years on average. My old Honda battery lasted over 5 years before needing to be replaced. Is 2 years too quick to replacing battery? I’m seriously considering installing a battery tender to maintain battery life but is it worth it? TIA

pngo

I don't have any records of my CPO 2016 IS having a battery replaced. It dies after 10-20 mins of accessory/radio on without engine on, but it starts up like a champ still.

beeftits

Look into a lithium ion battery. Never replace it again.

evltwn

I have lived in Phoenix for the last 19 years, and I have had to replace my batteries about every 2-3 years. My 2014 IS 250 that I have had since new, is on it's 3rd battery. In L.A. where I'm from, I never had to replace my car batteries this often. TX is like AZ, hot climate.

m0chafrap

My service records show that my 16 had its battery changed just before I bought it in 18, apparently it was failing the test when they were inspecting it. I'm planning on changing it in the next year or so. In most of my cars, my batteries have gone 2-3 years on average too.

swaangin

bought my car in 2017 (2015 model) with 10K miles.. has 47K now, haven't changed the battery

zhifan1

Interesting, can recommend one suitable for 3IS?

RageRacerM

Never replaced mine. My 2015 still has the original Panasonic battery. Car was manufactured and shipped out of Japan back in August 2014.... so 6 years old this month!

NickCaesar

I’m in Canada, my 2015 still has original battery. Has never not started, even on -40 Celsius days. Will probably replace soon before it finally does.

zhifan1

Little wonder Tesla seeks panasonic for their batteries

theoryguy3

I bought my car in Nov 2013 and haven't changed the battery yet.

BRiCCFLAiR

What does everyone recommend for a battery? Car has been sitting for a while and battery can no longer hold a charge after jumping and driving around.

Miintt

I have also never replaced the battery on my 16 200T with 44k miles.

Gekko

1. New Car/Battery Purchase – January 2004, 8 Miles - Lexus OEM

2. Battery Replaced – October 2009, 83K Miles - Lexus OEM

3. Battery Replaced – May 2014, 125K Miles - Lexus OEM

4. Battery Replaced (Prorated Battery Warranty) – July 2016, 138K Miles - Lexus OEM

5. Battery Replaced – March 2020, 154K Miles - Interstate

waterchng

I have a 2015 IS; replaced with a Costco Interstate battery in Sept. 2019 with ~36K miles. I do have an aftermarket amp installed but honestly I can't remember why I replaced the battery. It might've been just preventative maintenance and peace of mind as another car of ours had its battery die.