---
product_id: 207169859
title: "12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications"
brand: "expertpower"
price: "₩240939"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/207169859-12v-21ah-gel-deep-cycle-solar-battery-sealed-gel-technology
store_origin: KR
region: South Korea
---

# Impact & vibration resistant 12V 21Ah power capacity Sealed gel spill-proof design 12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications

**Brand:** expertpower
**Price:** ₩240939
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your lifestyle with unstoppable energy!

## Quick Answers

- **What is this?** 12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications by expertpower
- **How much does it cost?** ₩240939 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/207169859-12v-21ah-gel-deep-cycle-solar-battery-sealed-gel-technology)

## Best For

- expertpower enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Ready:** Ships pre-charged with standard M5 terminals for effortless installation
- • **Rugged Durability:** Impact-resistant casing built to withstand shocks and vibrations for long-lasting use
- • **Versatile Application:** Perfect for solar setups, marine, mobility scooters, and all 12V deep-cycle systems
- • **Reliable 12V 21Ah Power:** Delivers consistent deep-cycle energy for solar, mobility, and backup needs
- • **Spill-Proof Sealed Gel Tech:** Safe, maintenance-free gel electrolyte ensures flexible mounting without leaks

## Overview

The ExpertPower 12V 21Ah Gel Deep Cycle Solar Battery combines sealed gel technology with a durable, spill-proof design to deliver reliable, maintenance-free power. Engineered for deep-cycle applications like solar energy, marine, and mobility devices, it offers 12 volts and 21 amp hours of consistent energy in a compact, impact-resistant housing. Ready to install with standard terminals, it’s the go-to battery for professionals demanding dependable, long-lasting performance.

## Description

Full description not available

## Features

- Capacity & Voltage: Provides 12 volts and 21 amp hours of usable power, ideal for deep-cycle usage in solar systems, backup power, mobility devices, and other 12V applications.
- Sealed Gel Construction: The gel-electrolyte within a sealed case prevents spills and allows flexible mounting in equipment where orientation matters.
- Durable Build: Designed with an impact-resistant housing and built to handle vibration, shock, and repeated discharge cycles for long service life.
- Ready for Use: Ships ready to install and integrates easily into deep-cycle setups, with standard M5 threaded insert terminals and clear polarity. Dimensions: 7.12" x 3.03" x 6.57".
- Wide Application Scope: Suits a broad range of systems - from solar panels and renewable energy setups to mobility scooters and other 12V deep-cycle applications, where a 12V 21Ah deep-cycle battery is required.

## Product Details

- **Brand:** ExpertPower
- **Vehicle Service Type:** Scooter
- **Size:** 12V 21AH GEL
- **Voltage:** 12 Volts
- **Battery Cell Composition:** Lead Acid
- **Item Weight:** 13.4 Pounds
- **Product Dimensions:** 3.03"D x 7.12"W x 6.57"H
- **Terminal:** M5
- **Manufacturer:** ExpertPower
- **UPC:** 840140934502

## Images

![12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications - Image 1](https://m.media-amazon.com/images/I/71JRDFKK9+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality product.
*by G***N on June 20, 2025*

Quality product, as described and size is correct. Once installed, the batteries charged correctly.

### ⭐⭐⭐⭐⭐ Battery
*by M***Z on May 31, 2025*

Excellent Battery

### ⭐⭐⭐⭐ New life for APS
*by L***Z on August 19, 2020*

Bought this to replace aging battery on my reef aquarium APS. So far this item is working very well. This is definitely $$ saver as a new complete unit would have cost well over $170. I recommend this for anyone looking to not only replace but update an aging APS battery

## Frequently Bought Together

- ExpertPower 12V 21AH Gel Deep Cycle lead acid Battery
- Attwood PowerGuard Battery Boxes Designed for Marine, RV, Camping, Solar and More
- Apowery Solar Panel Kit 30W 12V Monocrystalline,Battery Maintainer +10A Solar Charge Controller + Extension Cable with Battery Clips O-Ring Terminal for RV Marine Boat Off Grid System

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/207169859-12v-21ah-gel-deep-cycle-solar-battery-sealed-gel-technology](https://www.desertcart.kr/products/207169859-12v-21ah-gel-deep-cycle-solar-battery-sealed-gel-technology)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-28*