Time for Battery Replacement/Upgrade

[paulo57509]

Yesterday afternoon, after listening to the radio for ~10 minutes (in accessory mode), the starter in the Highlander decided just decided to do the click-click. The engine started right up after connecting jumper cables.

This morning, I tested the battery/starting/charging systems with a Foxwell BT-705 and everything checked out OK; it did read, "Charge the battery;" 12.7 Volts. Also, the vehicle started without issue.

I think the battery is the original that was installed at assembly (6/2021; Toyota P/N 380LN3-ISS); battery is +4 years old. This battery is an EFB. I'm thinking an AGM would be a worthwhile upgrade?

Next to the (+) terminal - Is that a date code?

Note: Visually, I gave the battery connections a pass. I didn't want to deal with having to go thru the re-initialization steps.

 

[skyactiv]

Stick with the original chemistry if possible. AGM batteries aren't necessarily an upgrade.

 

[BigCahuna]

My 7 year old battery in my Equinox died on me yesterday. I didn't check anything, just removed it and replaced it. I got a AGM battery that had a slightly higher amp rating then my old one. I've used AGM batteries for years in my motorcycles and alway gotten good life out of them. If AGM's were that bad, it would be all over the web about how bad they are. I have a feeling it may outlast the car.,,

 

[D1dad]

I replaced the efb in my 21 last December with a deka flooded and no issues. I do charge my cars quite often and I just checked the battery the other day and it’s still 100% healthy and way more CCAs than advertised. My charging system is going to undercharge any battery I use and low volt charging is never good for an agm.

 

[f355spider]

I put a Walmart AGM in a friends Highlander a year or so ago, working great.

Battery manufacturer recommendations are mixed, with some saying it is fine to upgrade from and EFB to AGM, just never in the reverse.
But there are some that claim it is advisable to stick with EFB, if that is what it came with.

 

[jtwrace]

Stick with the original chemistry if possible. AGM batteries aren't necessarily an upgrade.

They are in Florida. A flooded battery will only last a year or two max here in Florida.

 

[skyactiv]

Little snippet towards the end of the video. A customer at a dealer was cheap and had a traditional flooded battery installed instead of sticking to an EFB. I know the thread starter is speaking of an AGM, but I feel a need to do a PSA because people are essentially equating an EFB battery to a traditional flooded battery.