Took my Tacoma to the Range

AGM Battery Replacement?

clovisb31 · 2026-03-20T20:49:26+00:00

Hello, I'm thinking about replacing the OE flooded lead acid battery with an equivalent size AGM type battery. The Tacoma charging system provides 13.9 Volts to the stock OE battery. An AGM battery typically needs 14.4-14.6 volts to properly charge. Is the alternator/charging system voltage able to be changed/increased to allow for proper AGM charging? Does anyone know what the procedure is? Is a dealer level Scan tool required to do this modification? Thanks in advance.

G4Rico

New member

Mar 29, 2024

This past weekend I took my Tacoma to the range. Not only were there a bunch of other Tacomas but I got a lot of compliments and the Gen 4. Got a 4 cylinder remark as well but you win some and you lose some

rustytaco

Administrator

Staff member

Mar 29, 2024

Heck yeah! I'm sure the truck gets a ton of attention.

I wouldn't call the 4 cylinder a total loss. It's kind of funny. Everyone loved the old turbo 4s. Now it's not that cool... Time will tell if they hold up though.

Took my Tacoma to the Range

G4Rico

New member

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rustytaco

Administrator

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