BenchTest

Just replaced mine today. Went with a Group 24F - EFB (Enhanced Flooded Battery). I fabricated a 14 gauge wire and alligator clip (both ends) setup, with a fuse inline. Used a donor 12V auto battery that I already had on hand. Worked well. No memory losses or weird issues. It's a bit awkward moving battery cables around with the jumper leads attached during the "surgery", but it's very doable.

BenchTest

Curious, what trim did you have to remove to replace the battery? Was this on a 4th Gen RX350?

jcg0324

Is this "trim" in reference to a 4th generation Lexus RX 350 12 volt battery ? Please show photos of this trim you had to remove.

I replaced my battery in a 2017 RX and did not see any trim or any obstacles of any kind. The old battery came out and the new one went in. A 5 minute project.

sderman

When changing batteries, I've found it easiest to just connect my (powered) Battery Tender cables to the 2 battery leads that are removed. This way there is no need to hurry with the new battery installation.

BenchTest

So, you're doing the same operation as me, except you are using a battery tender vs. an actual battery.

GS4_Fiend

iTrader: (22)

It not really a trim, but it's a cover (black). The black cover is covering the radiator and condenser. Don't know the exact name. It is covering the battery a bit. So removing it gives you a better access to the battery.

BenchTest

Interesting. I didn't experience that on mine. I just needed to remove the battery hold down, remove cables, and it was out. There was an access hole in the cover for the forward hold down bolt that made it easy to do.

sderman

Yep, just less cumbersome since the unit can just sit on the engine and the cables are very flexible. I assume everyone has some sort of a battery tender to use during vacations with so many Lexuses having parasitic battery drain issues.

monju0525

My 12v SAE cable setup for my battery minder without opening the hood. Convenient.

sderman

I have mine exiting from under the rear of the hood, positioned between the 2 wipers, and just barely sticking out so it's not noticeable.

monju0525

Mom taught me not to drive around looking that. I just tuck it under the front license plate and out of sight the malcontents who want to act upon their malicious intent.

sderman

Considering the common parasitic battery drain, Lexus should install as standard a trickle charger with wireless charging. Or perhaps a tiny under-the -hood gas-driven generator that turns on when the battery voltage drops.

jcg0324

Let's all hold our breath on that one.

monju0525

The 12V SAE cable has a 15amp in-line fuse which definitely trumps the wireless charger scenario. The SAE is designed to handle freezing and harsh conditions.

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