1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site
    Quick Links: OEM fender flares? what? they never came from factory did they? Replace Pads not Rotors Front hitch mount for dirt bike. Tundra Bed mounting solution Reflector or light in bottom of door Oil Filter Housing Cap ?

Voltage Booster PRO/HKB Electronics/GM Diode alternator voltage booster with standard battery?

Discussion in '2.5 Gen Tundras (2014-2021)' started by NMRich, Sep 5, 2025 at 10:43 AM.

  1. Sep 5, 2025 at 10:43 AM
    #1
    NMRich

    #1
    NMRich [OP] New Member

    Joined:
    Sep 29, 2024
    Member:
    #123611
    Messages:
    16
    First Name:
    Rich
    Vehicle:
    2017 Tundra 1974
    Any experience with a standard flooded lead acid battery and the various alternator voltage boosting techniques?

    I'm wondering if the +0.5V boost would be long term detriment to my batteries life. It's a little over 2 years old now.

    My truck with a Duralast Gold seems to like to sit at 13.2/13.5V at idle, the standard "float" charge range. But i haven't noticed it go up to the 14.2V for bulk charging even when first started and the engine is cold.

    When I do need a new battery I plan on finding an AGM.
     
    NMRich, Sep 5, 2025 at 10:43 AM
    #1
Register FREE to Reply!

Products Discussed in

EPAuto Spill Proof Radiator Coolant Filling Funnel Kit
$21.97
Car Fire Extinguisher Bracket | Fits Most Vehicles
$59.90
ALZIRIA Taillight Assembly Compatible with 2014-2021 2014 2015 2016 2017 2018 2019 2020 2021 14 15 16 17 18 19 20 21 Toyota tundra Driver Side (Chrome-Left)
$28.99
CERAKOTE® Ceramic Trim Coat Kit - Quick Plastic Trim Restorer - Ceramic Coating Guaranteed Restoration to Last Over 200 Washes – A Ceramic Coating, Not a Dressing
$16.88
VViViD Extra-Wide Headlight Taillight Vinyl Tint Wrap Roll (Light Smoke 16" x 48" 2-Roll Pack)
$18.98
VelvetunVillay Blank Socket Fit for Toyota Prado Hilux Landcruiser，Pluggable RJ45 Model Interface Radio Switch Panel Dash
$14.99
Premium Quality Brand Stabilus Tailgate Lift Support Compatible with 2019-2007, Toyota Tundra, Black (4B-256726)
$27.40
Toyota Gasket - 22271-50050
$11.00
SEM 39143 Trim Black Aerosol - 15 oz.
$22.32
TEMCo Hammer Lug Crimper Tool - Crimps 8 AWG to 4/0 Battery & Welding Cables (Workbench-Mountable)
$20.69
ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
$20.50
Casrram Upgrade Aluminum Tailgate Hinge Bushing Compatible with Toyota Tundra 2007-2021 for Rear Tail Gate Left Driver Side
$21.99
HIGH FLYING for Toyota 4Runner 2010-2024, Tundra 2014-2021 Steering Wheel Replacement Part BLACK Perforated Leather No Strip (With Heating Function)
$390.00
Lisle 37960 Electrical Disconnect Pliers
$19.98
12204-38030
$12.89
Toyota Genuine Parts - TRD Air Intake Truck (PTR03-00140)
$517.51
TRIAX Synergy Gear Max 75W-90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)
$38.49
Motivx Tools Oil Filter Wrench, Drain Tool, and Advanced Engine Oil Funnel Set for Toyota & Lexus 2.0L - 5.7L Engines With Cartridge Style Systems
$74.95
Midland - MXTA26 MicroMobile 1.5" Base Diameter 6DB Gain Whip Antenna with NMO Great for Off-roaders, overlanders, Farmers - Max Power120W Boost Signal Output - 5/8 Wave - 32” Antenna
$59.99
Funko Skyrim - Alduin 6" Pop Vinyl Figure
$62.58
HEMSK DAYS Aluminium Alloy Rigid Molle Panels for Vehicles, Modular Storage & Display, 1 Pack (22"x13.5")
$64.98
GOOLOO Upgraded GP3000 Jump Starter 3000A Peak Car Starter (Up to 9L Gas or 7L Diesel Engine) 12V Jump Box Auto Lithium Battery Booster SuperSafe Portable Power Pack with USB Quick Charge, Type-C Port
$59.98
Rigidhorse 32" LED Light Bar Single Row Flood & SpotBeam Combo 30000LM Off Road LED Light Bar Driving Light for Pickup SUV ATV UTV Truck Roof Bumper
$65.98
3M Panel Bonding Adhesive 08115, OEM Recommended Two-Part Epoxy, 200 mL Cartridge, Bonds Metal & Composites for Auto Body Panel Repair (1 Cartridge)
$59.40
ROVE R2-4K Dash Cam Built-in WiFi 6 GPS Car Dashboard Camera Recorder with UHD 2160P, 2.4" IPS Screen, 150° Wide Angle, WDR, Night Vision
$71.98
Intro-Tech Automotive TT-84-P Custom Fit Premium Folding Windshield Sunshade for Toyota Tundra Models, Silver
$59.99
Dupli-Color EBTY16197-6PK Perfect Match Automotive Spray Magnetic Grey, 1G3 – 8 oz. Aerosol Can, 6-Pack
$65.98
Kat's 11813 Engine Heater Cartridge
$72.40
MeeFar Universal Car Soft Roof Rack Pads Luggage Carrier System for Kayak Surfboard SUP Canoe Include 2 Heavy Duty Tie Down Straps, 2 Tie Down Rope, 2 Quick Loop Strap and Storage Bag
$69.98
Viper 4105V 1-Way Remote Start System
$70.00
Furhaven Deluxe Multi-Panel Hard Bottom Platform Bridge Backseat Protector w/ Travel Bag - Gray, One Size
$69.40
MaxxHaul 70231 Hitch Mount Pick Up Truck Bed Extender For Ladder, Rack, Canoe, Kayak, Long Pipes and Lumber) , Black , 37 x 19 x 3"es
$63.99
Daystar, Air Bag Cradle designed for full suspension travel, Fits All 6" diameter convoluted Air Bags, fits any full size of half ton truck, 2/4WD, KU09140BK, Made in America, Black
$65.12
Chevron 65740-6PK 65740-CASE Techron Concentrate Plus Fuel System Cleaner - 20 oz., (Pack of 6)
$59.09
AA Products Tailgate Ladder Foldable Pickup Truck with Wide Pedal Non-Slip Sturdy Easy Install Durable Steel Omni-Directional Ladder Rack Capacity 660 lb(USPTO Patent Pending)
$74.90
Cali Raised LED 32" Lower Bumper Hidden LED Light Bar Brackets Kit for 2014-2021 Tundra (Brackets Only)
$74.98
LEXIVON 1/2" Drive Click Torque Wrench 25-250 Ft-Lb/33.9-338.9 Nm (LX-184)
$69.97
Front Car Windshield Sun Shade Compatible With 2007-2020 Toyota Tundra XK50 | Custom Fit Visor Accordion Fold Style Sun Protector | Silver & Grey 1-pc Set | SS-337
$58.89
Dayco 89378 Belt Tensioner
$65.76
Loncky Black Custom Car Steering Wheel Cover for Toyota 2012-2021 Toyota Tacoma/Toyota Tundra 2014-2021/ Toyota 4Runner 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021/ Sequoia 2014-2021
$59.99
GlueTread 4x4 Sidewall Emergency Tire Repair Kit | Puncture Repair Anywhere | No Need to Remove Tire | Sidewall Tubeless Tire Patch Kit | Includes Accelerator (Eliminates Curing Time)
$59.95
Faraday Defense 10pc Kit NEST-Z Faraday Bag EMP/Solar-Flare Prepper Ultra Thick - Military Grade Design, Superior Shielding Performance, Phones - Radios - Hard Drives - Tablets - Laptops Made in USA
$74.98
To Top