Description
The VoltageBoosterPRO O.G. Edition is the one that started it all! It’s our original model that fits the Toyota 5th gen 4Runner (2010-2022) and the Lexus GX460.
VoltageBoosterPRO is a user adjustable diode modification with an inline fuse that allows you to safely increase your alternator voltage to optimize your AGM battery charging. AGM batteries (Optima, Odyssey, Northstar) are undercharged when used with your factory alternator. Traditional flooded acid batteries at charged at ~13.8v, but AGM batteries often specify a charging voltage of 14.5+. Undercharging your AGM battery reduces battery lifespan and available charge capacity. The VoltageBoosterPRO lets you do a diode modification so that you can increase your alternator voltage output to charge your AGM battery a higher voltage while also maintaining a fuse for that circuit!
We HIGHLY recommend not doing the DIY GM Diode mod, which when done REMOVES the safety fuse of that circuit. The GM Diode is NOT a fuse. Shorting a fuse using a plain diode is not a great idea. A team of engineers spent years designing the electrical system of your truck. If you do any diode mod, please make sure you have a fuse in that circuit! Otherwise if you have a short circuit, you may have a full battery amperage fire in your engine bay!
With this mod, you retain the fuse on that circuit, in a clean, easily removable package.
The “Low” mode provides ~0.4-0.5V of increased alternator voltage. The “High” mode is ~0.8-1.0V.
Each unit is made in San Antonio, Texas.
Supported Vehicles
- 2010-2019 Toyota 4Runner: Select O.G. Model ‘A’
- 2020-2023 Toyota 4Runner: Select O.G. Model ‘B’
- 2010-2022 Lexus GX460: Select O.G. Model ‘A’
One Minute Installation
- Locate the ALT-S fuse in the engine fuse box.
- Remove it and place into the Voltage Booster PRO
- Place the Voltage Booster PRO into the removed fuse location
Additional information
| Weight | 2 oz |
|---|---|
| Dimensions | 10 × 6 × 2 in |
| Mode | A (2010-2019 4Runner, 2010-2023 GX460), B (2020-2023 4Runner) |
Reviews (60)
60 reviews for Voltage Booster PRO “The O.G.” (5th Gen 4Runner & GX460)
Customer Images
Voltage Booster PRO "The O.G." (5th Gen 4Runner & GX460)
Great quality product. Does exactly what it needs too. Impressed with what I purchased and would buy again if need, but I doubt I will because the build quality is superb. If I buy a new Toyota then I’ll buy another voltage booster
This product is the real deal!!! I love mine!
Awesome product, very easy to install, good customer service and fast shipping
Quick response and excellent customer service! Device works exactly as advertised. Thanks for helping to take care of my new AGM battery!
Nice piece of mind, and I really appreciate the dual modes. You can use a scangauge or similar tool to watch the difference between the two modes.