---
product_id: 230026064
title: "Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes)"
brand: "genasun"
price: "R$3286"
currency: BRL
in_stock: true
reviews_count: 2
category: "Genasun"
url: https://www.desertcart.com.br/products/230026064-genasun-gvb-8-li-54-2v-wp-8-a-input
store_origin: BR
region: Brazil
---

# 350W max solar input Waterproof IP rating Optimized for 13S Lithium eBike batteries Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes)

**Brand:** genasun
**Price:** R$3286
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your ride with precision — never miss a charge, rain or shine!

## Quick Answers

- **What is this?** Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes) by genasun
- **How much does it cost?** R$3286 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/230026064-genasun-gvb-8-li-54-2v-wp-8-a-input)

## Best For

- genasun enthusiasts

## Why This Product

- Trusted genasun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Durability:** 5-year USA-made warranty with CE, FCC, and RoHS certifications
- • **Compact & Lightweight:** Tiny dimensions and low power consumption, perfect for on-the-go eBike use
- • **Precision Solar Boosting:** High-speed MPPT tracks max power 15x/sec for peak 99% efficiency
- • **Tailored Lithium Charging:** Programmed for 54.2V CC/CV charge voltage, ideal for 13S lithium battery packs
- • **Built to Brave the Elements:** Waterproof design ensures reliable charging rain or shine

## Overview

The Genasun GVB-8-Li-54.2V-WP is a compact, waterproof MPPT solar charge controller designed specifically for 13S lithium battery eBikes. Supporting up to 350W solar input at 8A, it delivers ultra-efficient power conversion with 99% peak efficiency by tracking solar output 15 times per second. Built in the USA with a 5-year warranty and certified for safety and quality, it’s the ultimate smart solar boost for mobile electric vehicles.

## Description

desertcart.com : Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes) : Patio, Lawn & Garden

Review: Small - As a electric bike tourer this little device help me get across my state using solar along the way when a plug in wasn't available. It small, light, and has no fan.
Review: Best Solar Charger there is for Solar-E-Bikes. - I am still working out the best way to mount the panels, but so far so good. A Genasun controller is the best and easiest way to add solar to an e-Bike. You must get the correct Genasun with the matching voltage for your battery size and type, it cannot be changed. The controller will electronically change whatever voltage and amps it recieves from the solar panel, or wind turbine. It will then output what the battery needs to charge. There are limits to max volts and amps though, just stay within the limits. Simple setup: Solar panels plugged into Genasun controller Genasun controller plugged into battery charge port

## Features

- Solar BOOST controller for 350W solar panels/array, recommended current input 8A, programmed with a charge voltage CC/CV at 54.2V for 14S Lithium batteries (4.17V per cell)
- High-Speed MPPT, the GVB-8-WP tracks the M.P.P. with a speed tracking of 15 Hz (15 times per sec.)
- The unique Genasun technology allows to hit 99% Peak Efficiency, tiny dimensions, and tiny consumption (mA)
- Waterproof, ideal for ebikes, golf carts, and electrical vehicles
- 5-Year Warranty, Made in the USA, CE,FCC,RoHS certifications. Datasheet in the “Technical Specification” below

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #901,769 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,014 in Renewable Energy Controllers |
| Brand | Genasun |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 10 Reviews |
| Display Type | LED |
| Material | Composite |
| Product Dimensions | 5.5"L x 3.2"W x 2.2"H |
| Voltage | 54.2 Volts |

## Product Details

- **Color:** Black
- **Brand:** Genasun
- **Voltage:** 54.2 Volts
- **Product Dimensions:** 5.5"L x 3.2"W x 2.2"H
- **Display Type:** LED

## Images

![Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes) - Image 1](https://m.media-amazon.com/images/I/51G-e5uuycL.jpg)
![Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes) - Image 2](https://m.media-amazon.com/images/I/619yd2zuDxL.jpg)
![Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes) - Image 3](https://m.media-amazon.com/images/I/61MBEsrjm5L.jpg)
![Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes) - Image 4](https://m.media-amazon.com/images/I/51V09vKe5vL.jpg)
![Genasun GVB-8-Li-54.2V-WP, 8 A (Input) 350 W Solar Panel, Waterproof Voltage Boosting MPPT Solar Charge Controller for 13S Lithium Batteries (eBikes) - Image 5](https://m.media-amazon.com/images/I/61OFMHGW7wL.jpg)

## Questions & Answers

**Q: Is the 54.2 version recommended for charging a 48v 15ah battery using samsung 50e 21700 cells in a 13s3p formation?**
A: The Samsung INR21700-50E cell is rated with a max charge voltage of 4.2V with a charge profile CC/CV. We suggested the GVB-8-Li-54.2V-WP.

**Q: Is there a 54.6v model?**
A: Yes, the GVB-8-Li-54.2V-WP is the version for a 13S Li-ion with a max charge voltage of 54.6V (13S per 4.2V per cell). Genasun recommends charging the Li cells with a lower voltage ~4.17V in order to minimize stress on the cells without sacrificing significant State of Charge (SOC) and improving the performance and longevity of the battery. For a 13S, the GVB-8-Li-54.2V-WP is programmed with a CC/CV charge profile and charge voltage of 54.2V (13x 4.17V).

**Q: What happens if the input goes higher then 8a? For example like a battery connected to the input.**
A: If the current input is higher than 8 A, the GVB-8-WP will go into a current limiting mode, operating slightly above their rated ability.  This is designed as a safety feature and is not intended for prolonged use. Extended time spent in default current limiting mode will cause the premature failure of the charge controller, voiding the warranty. 
We do not suggest using a battery as an input source because there is no control of the max. current that will go through the controller.

**Q: Is there a way to limit amps out? or does the solar determine that?**
A: No, the only connections are for a battery and a solar panel. If you have an approx. output amp that you are looking for you can select an appropriate size solar panel. With a 100w. solar panel you can expect about 2.0 amps of charging in the best of solar charging conditions.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Small
*by E***T on January 15, 2022*

As a electric bike tourer this little device help me get across my state using solar along the way when a plug in wasn't available. It small, light, and has no fan.

### ⭐⭐⭐⭐⭐ Best Solar Charger there is for Solar-E-Bikes.
*by R***S on June 2, 2022*

I am still working out the best way to mount the panels, but so far so good. A Genasun controller is the best and easiest way to add solar to an e-Bike. You must get the correct Genasun with the matching voltage for your battery size and type, it cannot be changed. The controller will electronically change whatever voltage and amps it recieves from the solar panel, or wind turbine. It will then output what the battery needs to charge. There are limits to max volts and amps though, just stay within the limits. Simple setup: Solar panels plugged into Genasun controller Genasun controller plugged into battery charge port

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-26*