---
product_id: 717817695
title: "GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home"
brand: "grenerpower"
price: "₨354555"
currency: LKR
in_stock: true
reviews_count: 8
category: "Grenerpower"
url: https://www.desertcart.lk/products/717817695-grenerpower-12-8v100ah-group-31-dual-purpose-lifepo4-battery-built
store_origin: LK
region: Sri Lanka
---

# 900A Marine Cranking Amps IP66 Waterproof Rating 12.8V 100Ah Dual Purpose Capacity GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home

**Brand:** grenerpower
**Price:** ₨354555
**Availability:** ✅ In Stock

## Summary

> 🚤 Power your voyage with the ultimate dual-purpose marine battery—start strong, cruise longer!

## Quick Answers

- **What is this?** GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home by grenerpower
- **How much does it cost?** ₨354555 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/717817695-grenerpower-12-8v100ah-group-31-dual-purpose-lifepo4-battery-built)

## Best For

- grenerpower enthusiasts

## Why This Product

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

## Key Features

- • **Power Up Instantly:** 900A MCA delivers lightning-fast starts for your outboard motor—never miss a moment on the water.
- • **Scalable Power Hub:** Expand up to 16 units (4P4S) for massive 48V400Ah systems—perfect for boats, RVs, or off-grid solar adventures.
- • **Lightweight Energy Giant:** 40% lighter than lead-acid batteries, with double the energy density—carry more power without the bulk.
- • **Dual-Terminal Versatility:** One battery, two roles—start your engine and power onboard devices seamlessly with a smart dual-terminal setup.
- • **Built to Brave the Elements:** IP66 waterproof and shock-resistant design ensures unstoppable performance in the roughest marine conditions.

## Overview

The GrenerPower 12.8V100Ah Group 31 LiFePO4 battery is a cutting-edge dual-purpose marine battery featuring a robust 200A BMS, IP66 waterproof rating, and a max 900A marine cranking amp output. Weighing just 25.35 lbs, it’s 40% lighter than traditional lead-acid batteries while delivering double the energy. Designed for outboard motors, boats, RVs, and off-grid setups, it supports scalable configurations up to 48V400Ah, making it a versatile, durable, and high-performance power solution for professional marine and outdoor enthusiasts.

## Description

Buy GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Light and handles 5hp load easily - Worked great on my 5hp trawler motor, capacity is enough for an hour of full throttle. It's light enough to easily hit swap with another in the field (I have 2 of these batteries fully charged when I go out, just in case)
Review: LiFePO4 vs AGM... LiFePO4 wins no doubt - I upgraded my power wheelchair from AGM batteries to LiFePO4 and OMG, the difference that it made is unbelievable. Range increased by several miles and performance is vastly improved as well. I have literally tried to run these down, but so far, nope.

## Features

- ✅Market First, Uniquely Dual-Powered✅ Meet the game-changer for your marine adventures – the GrenerPower 12.8V100Ah dual purpose lifepo4 battery! Designed specifically as a lithium cranking battery, it delivers 900A MCA (Marine Cranking Amps) to ignite even the toughest outboard motors instantly. It is a Group 31 battery (13.0x8.35x6.62in) with dual-terminal design, this marine starting battery powers both your motor and onboard devices like fish finders. No more swapping batteries – enjoy all-day cruising and backup power in one rugged Lifepo4 battery that outperforms lead-acid by 40% lighter weight.
- ✅Cylindrical Cells, Built Tougher✅ Engineered for rough seas, our 12v marine battery uses Grade-A cylindrical cells and a robust 200A BMS for superior heat dissipation and shock resistance. Safeguarded against short circuit, high temp, over discharge, over charge and over voltage, it handles 2C discharge rates – perfect for trolling motor battery demands. Outlasts bulky prismatic batteries in vibration-heavy environments.
- ✅Dual-Terminal Game-Changer✅ One battery, two purposes! This 12V100Ah dual purpose lithium battery combines marine starting battery strength with deep-cycle battery endurance. Its IP66 waterproof rating and Group 31 battery case fit standard battery boxes, while dual terminals let you crank your outboard motor and then run 12V loads (lights, GPS, pumps) . It weighs 25.35lbs, at 40% lighter than 12V100Ah lead-acid yet packing double the energy, it’s the ultimate MCA starting battery for longer, faster voyages.
- ✅Expandable Power✅ Scale up to 16 units-4 in parallel & 4 in Series (48V400Ah system) for Marine, Off-Grid Life, RVs or solar setups! This 12 volt 100Ah LiFePO4 battery delivers 1280Wh/2560W to run trolling motors, anchors, and boat lights, or power solar off-grid homes. Versatile and rugged, it’s your all-in-one outboard motor battery and energy hub.
- ✅Pro Tips for Peak Performance✅ Note: ① Not for car starting/golf carts. ‼️② Use a 14.6V20A lithium charger or solar system to fully charge it before using. ③ Operate safely: Charge 32–113°F, Discharge -4–140°F (cell ≤176°F). ④ Activate your 5-year warranty by registering online! Need help? Contact us for expert support on your 900A MCA marine cranking battery setup.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJ93JLDL |
| Battery Cell Composition | Lithium Ion |
| Battery Type | Lithium Ion |
| Best Sellers Rank | #354,658 in Health & Household ( See Top 100 in Health & Household ) #2,107 in 12V Batteries |
| Brand | GRENERPOWER |
| Brand Name | GRENERPOWER |
| Compatible with Vehicle Type | Boat, Lawn Mower, Marine, Outboard Motor, RV, Trolling Motor, Van |
| Customer Reviews | 4.7 out of 5 stars 74 Reviews |
| Included Components | 1* GrenerPower 12V 100Ah Dual Purpose LiFePO4 Battery, 1* Product Manual, 1* Warranty Card, 2* Insulating Caps for Dual Purpose Terminals |
| Item Dimensions D x W x H | 6.62"D x 13"W x 8.35"H |
| Item Height | 8.35 inches |
| Item Weight | 25.35 Pounds |
| Manufacturer | GRENERPOWER |
| Manufacturer Part Number | GP 12.8V100Ah G31 |
| Manufacturer Warranty Description | 5 Years Warranty |
| Size | 12V100Ah HP |
| Terminal | Marine Terminal |
| Vehicle Service Type | Boat, Lawn Mower, Marine, Outboard Motor, RV, Trolling Motor, Van |
| Voltage | 12.8 Volts |

## Product Details

- **Battery Capacity:** 100 Amp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** GRENERPOWER
- **Item Weight:** 25.35 Pounds
- **Manufacturer:** GRENERPOWER
- **Product Dimensions:** 6.62"D x 13"W x 8.35"H
- **Size:** 12V100Ah HP
- **Terminal:** Marine Terminal
- **Vehicle Service Type:** Boat, Lawn Mower, Marine, Outboard Motor, RV, Trolling Motor, Van
- **Voltage:** 12.8 Volts

## Images

![GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home - Image 1](https://m.media-amazon.com/images/I/7149hSSV-uL.jpg)
![GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home - Image 2](https://m.media-amazon.com/images/I/71d3ApYUJaL.jpg)
![GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home - Image 3](https://m.media-amazon.com/images/I/71x3ZK1DxoL.jpg)
![GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home - Image 4](https://m.media-amazon.com/images/I/71yA0TUAYyL.jpg)
![GrenerPower 12.8V100Ah Group 31 Dual Purpose LiFePO4 Battery, Built-in 200A BMS, IP66 Waterproof, and Max. 900A Marine Cranking Starting Lithium Battery, Up to 4P4S for Outboard Motors, Boat, RV, Home - Image 5](https://m.media-amazon.com/images/I/812yfOTatmL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Light and handles 5hp load easily
*by J***U on August 27, 2025*

Worked great on my 5hp trawler motor, capacity is enough for an hour of full throttle. It's light enough to easily hit swap with another in the field (I have 2 of these batteries fully charged when I go out, just in case)

### ⭐⭐⭐⭐⭐ LiFePO4 vs AGM... LiFePO4 wins no doubt
*by C***K on September 22, 2025*

I upgraded my power wheelchair from AGM batteries to LiFePO4 and OMG, the difference that it made is unbelievable. Range increased by several miles and performance is vastly improved as well. I have literally tried to run these down, but so far, nope.

### ⭐⭐⭐⭐⭐ Meets Expectations
*by B***M on September 16, 2025*

Great battery

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**Shop now:** [https://www.desertcart.lk/products/717817695-grenerpower-12-8v100ah-group-31-dual-purpose-lifepo4-battery-built](https://www.desertcart.lk/products/717817695-grenerpower-12-8v100ah-group-31-dual-purpose-lifepo4-battery-built)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-29*