---
product_id: 96535019
title: "Schumacher Electric Solar Battery Maintainer, SP-400, Water Resistant, Amorphous Solar Technology, 4.8 Watts, 12 Volt, for Motorcycle, Power Sport, Car, Truck, RV, and Marine Batteries"
brand: "schumacher electric"
price: "₨107596"
currency: LKR
in_stock: false
reviews_count: 5
url: https://www.desertcart.lk/products/96535019-schumacher-electric-solar-battery-maintainer-sp-400-water-resistant-amorphous
store_origin: LK
region: Sri Lanka
---

# Water-resistant design 7A output current 4.8W amorphous solar tech Schumacher Electric Solar Battery Maintainer, SP-400, Water Resistant, Amorphous Solar Technology, 4.8 Watts, 12 Volt, for Motorcycle, Power Sport, Car, Truck, RV, and Marine Batteries

**Brand:** schumacher electric
**Price:** ₨107596
**Availability:** ❌ Out of Stock

## Summary

> ☀️ Keep your ride charged and ready—solar smart, rain tough, hassle-free power!

## Quick Answers

- **What is this?** Schumacher Electric Solar Battery Maintainer, SP-400, Water Resistant, Amorphous Solar Technology, 4.8 Watts, 12 Volt, for Motorcycle, Power Sport, Car, Truck, RV, and Marine Batteries by schumacher electric
- **How much does it cost?** ₨107596 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/96535019-schumacher-electric-solar-battery-maintainer-sp-400-water-resistant-amorphous)

## Best For

- schumacher electric enthusiasts

## Why This Product

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

## Key Features

- • **Weatherproof & Ready:** Water-resistant build means your maintainer thrives rain or shine, perfect for outdoor adventures.
- • **Plug & Play Simplicity:** Long 96-inch cable and easy clamp or DC plug connection make setup a breeze—no tech degree required.
- • **Sun-Powered Battery TLC:** Harness 4.8 watts of amorphous solar energy to keep your 12V battery effortlessly charged—no outlets needed.
- • **Extend Battery Life Like a Pro:** Trickle charge smartly to maximize battery health and avoid unexpected dead starts, keeping you always on the move.
- • **Universal Vehicle Compatibility:** Optimized for motorcycles, cars, trucks, RVs, boats, and more—one device to maintain all your rides.

## Overview

The Schumacher SP-400 Solar Battery Maintainer delivers a steady 4.8-watt trickle charge using advanced amorphous solar technology, ensuring your 12V batteries stay healthy and fully charged without external power. Its water-resistant design and 7-amp output current make it ideal for a wide range of vehicles including motorcycles, cars, trucks, RVs, and boats. With easy plug-and-play setup and a long cable for flexible placement, this compact maintainer extends battery life by providing reliable, eco-friendly power even in low-light conditions.

## Description

Capture the limitless power of the sun to trickle charge your vehicle’s 12V battery with Schumacher’s SP-400 4.8W Solar Battery Maintainer. A solar power battery maintainer ensures a healthy, fully charged battery wherever you are, without the need for an electrical outlet or battery pack. Ideal for extending the battery life of 12V lead-acid batteries, the SP-400 solar battery maintainer can be used to maintain the battery of your motorcycle, snowmobile, ATV, boat, car, truck, RV, or other vehicle. Employing amorphous solar technology, the SP-400 even works in cloudy conditions and built-in water resistance means a stray rain shower won’t damage the unit. There are two ways to hook-up the SP-400 to your vehicle battery. Use the battery clips to connect it directly to your battery or plug the 12V plug into your vehicle’s 12V DC accessory outlet. The Schumacher SPC-7A Charge Controller is recommended for extra overcharge protection (sold separately).

Review: Muy ligero y compacto - Buen producto, ligero y resistente al agua
Review: Works well. Keep my car from dying due to low battery. - Works well, keeps my car from dying from the drain in current due to my video camera. Could have come with a small flip out stand to prevent it from having water pooling on it during rain. Comes with super long wires. Good quality but seems a bit expensive. Wattage also seems to be low but this is meant to maintain, not charge. Could have come with rubber feets too to prevent scratching my car. Solved this problem by buying rubber feets and sticking it myself. Recommended to use with charge controller to avoid frying your battery.

## Features

- TRICKLE CHARGE: Delivers 4.8-watt trickle charge to boat, car, motorcycle, ATV, snowmobile, truck, RV, and other 12V batteries to maintain your 12V battery
- EXTEND BATTERY LIFE: Maintaining your 12V batteries with the SP-400 optimizes the health of the battery and extends battery life
- SOLAR-POWERED: Solar panel battery maintainer utilizes amorphous solar technology to convert sunlight into power
- NO ELECTRICITY NEEDED: Charge the maintainer by placing it panel-side up in an area exposed to daylight such as a dashboard or the hood of a vehicle
- THIN-FILM TECHNOLOGY: The panel absorbs a larger spectrum of light than other solar panels, allowing it to work under low-light and cloudy conditions.EASY TO USE: Simplified, environmentally safe design offers plug-and-play usability and requires minimal maintece; 96-inch cable allows you to position the unit nearly anywhere on your vehicle.WATER-RESISTANT: The unit is water resistant to withstand light rain or water splashes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005MVB524 |
| Amperage | 7 Amps |
| Box Contents | SP-400 4.8 W Solar Battery Maintainer, 12V DC adapter, clamp adapter, (4) mounting screws, and user manual |
| Brand | Schumacher Electric |
| Brand Name | Schumacher Electric |
| Colour | Black |
| Compatible Devices | Boats, Cars, Motorcycles, ATVs, Snowmobiles, Trucks, RVs |
| Compatible Phone Models | not_applicable |
| Compatible devices | Boats, Cars, Motorcycles, ATVs, Snowmobiles, Trucks, RVs |
| Compatible phone models | not_applicable |
| Connectivity Technology | DC Barrel |
| Connector Type | Clamp |
| Connector type | Clamp |
| Current Rating | 7 Amps |
| Customer Package Type | 1 |
| Customer Reviews | 4.3 out of 5 stars 1,392 Reviews |
| Enclosure Material | Amorphous |
| Global Trade Identification Number | 00026666810470 |
| Included components | SP-400 4.8 W Solar Battery Maintainer, 12V DC adapter, clamp adapter, (4) mounting screws, and user manual Included components SP-400 4.8 W Solar Battery Maintainer, 12V DC adapter, clamp adapter, (4) mounting screws, and user manual See more |
| Input Voltage | 120 Volts |
| Item Type Name | Battery Charger |
| Item Weight | 1.8 kg |
| Item height | 0.51 inches |
| Manufacturer | Schumacher Electric |
| Model Number | SP-400 |
| Number of Items | 1 |
| Output Current | 7 Amps |
| Output Voltage | 12 Volts |
| Portable | Yes |
| Power Plug Type | No Plug |
| Power Source | Solar Powered |
| UPC | 026666810470 642008602222 |
| Unit Count | 1.0 Count |
| Wattage | 4.8 watts |

## Images

![Schumacher Electric Solar Battery Maintainer, SP-400, Water Resistant, Amorphous Solar Technology, 4.8 Watts, 12 Volt, for Motorcycle, Power Sport, Car, Truck, RV, and Marine Batteries - Image 1](https://m.media-amazon.com/images/I/31BCnumo5OL.jpg)
![Schumacher Electric Solar Battery Maintainer, SP-400, Water Resistant, Amorphous Solar Technology, 4.8 Watts, 12 Volt, for Motorcycle, Power Sport, Car, Truck, RV, and Marine Batteries - Image 2](https://m.media-amazon.com/images/I/61DUogGzM2L.jpg)
![Schumacher Electric Solar Battery Maintainer, SP-400, Water Resistant, Amorphous Solar Technology, 4.8 Watts, 12 Volt, for Motorcycle, Power Sport, Car, Truck, RV, and Marine Batteries - Image 3](https://m.media-amazon.com/images/I/61P5sa+euBL.jpg)
![Schumacher Electric Solar Battery Maintainer, SP-400, Water Resistant, Amorphous Solar Technology, 4.8 Watts, 12 Volt, for Motorcycle, Power Sport, Car, Truck, RV, and Marine Batteries - Image 4](https://m.media-amazon.com/images/I/81amcdryTdL.jpg)

## Questions & Answers

**Q: does cigarette lighter port have to be active with the 12volts from battery? some cars, the cigarette lighter port shuts off when car is shut off.**
A: I have a Toyota RAV4 4WD, and a Hyundai Tucson 4WD. They each have 3 cigarette lighter type 12 volt outlets inside. None of them are live until the key is turned on.

**Q: I want to set up a campsite with my Honda Element., and I want to use the Schumacher so I can watch a TV or play the stereo. Will this work?**
A: when the sun is heating a lot (around noon) the shumacher pannel cell charges the batterie at 24 volts, if you let this charge  the car batterie you would be able to enjoy it, i use it to charge a 600 amps  car batterie that turn on 6 led light bulbs that consume 3 amp/h each (18 amp/h) and it work all night long, i think that this device will let you watch tv or the stereo separately but this will work as long as you have a clear day, y dont recommend you to plug directly to the tv or stereo because the solar pannels never send the same voltaje, all of them are designed to plug to an charge controller

**Q: Does the charger also come with a controller?The pictures displayed show the controller.But i also see it in the list of items frequently bought tog**
A: It comes with the adapter for 12V cigarette lighter and battery clamps, the controller is separate.

**Q: can it overcharge a deisel battery**
A: Batteries are usually lead/acid. Never heard of a deisel battery. Dosent sound vary efficient though...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Muy ligero y compacto
*by C***T on 10 May 2021*

Buen producto, ligero y resistente al agua

### ⭐⭐⭐⭐⭐ Works well. Keep my car from dying due to low battery.
*by B***C on 4 November 2020*

Works well, keeps my car from dying from the drain in current due to my video camera. Could have come with a small flip out stand to prevent it from having water pooling on it during rain. Comes with super long wires. Good quality but seems a bit expensive. Wattage also seems to be low but this is meant to maintain, not charge. Could have come with rubber feets too to prevent scratching my car. Solved this problem by buying rubber feets and sticking it myself. Recommended to use with charge controller to avoid frying your battery.

### ⭐⭐⭐⭐⭐ High quality, works great
*by A***R on 1 October 2018*

Using it to charge my boat battery, works great

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**Shop now:** [https://www.desertcart.lk/products/96535019-schumacher-electric-solar-battery-maintainer-sp-400-water-resistant-amorphous](https://www.desertcart.lk/products/96535019-schumacher-electric-solar-battery-maintainer-sp-400-water-resistant-amorphous)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-11*