---
product_id: 207169859
title: "ExpertPower 12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications"
brand: "expertpower"
price: "€ 321.56"
currency: EUR
in_stock: true
reviews_count: 8
category: "Expert Power"
url: https://www.desertcart.com.cy/products/207169859-expertpower-12v-21ah-gel-deep-cycle-solar-battery-sealed-gel
store_origin: CY
region: Cyprus
---

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

**Brand:** expertpower
**Price:** € 321.56
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your lifestyle with unstoppable energy!

## Quick Answers

- **What is this?** ExpertPower 12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications by expertpower
- **How much does it cost?** € 321.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/207169859-expertpower-12v-21ah-gel-deep-cycle-solar-battery-sealed-gel)

## 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

- • **Built to Endure:** Rugged housing resists shocks and vibrations for long-lasting performance.
- • **Plug & Play Ready:** Ships fully charged with standard M5 terminals for hassle-free installation.
- • **Versatile Application:** Ideal for renewable energy setups, mobility scooters, and backup power systems.
- • **Reliable Deep-Cycle Power:** Consistent 12V 21Ah output perfect for solar, marine, and mobility needs.
- • **Spill-Proof Sealed Gel Design:** Safe, maintenance-free gel electrolyte allows flexible mounting anywhere.

## Overview

The ExpertPower 12V 21Ah Gel Deep Cycle Battery delivers reliable, maintenance-free power with sealed gel technology and a durable, vibration-resistant design. Perfectly engineered for solar, marine, and mobility applications, it offers consistent deep-cycle performance in a compact, ready-to-install package.

## Description

Buy ExpertPower 12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications: Replacement Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Exelent!! - I purchased the ExpertPower 12V 21AH Gel Deep Cycle Battery and I’m very impressed with its performance. It holds a strong charge, delivers consistent power, and works perfectly for long periods without any issues. The battery arrived well-packaged and was easy to install. For the price, the quality and durability are excellent. Highly recommended if you need a dependable deep-cycle battery.
Review: Good battery - So far so good. I use it in my 66 aloha travel trailer to run my water pump. Holds a long charge.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0892VVR97 |
| Batteries | 1 12V batteries required. (included) |
| Best Sellers Rank | #200,758 in Health & Household ( See Top 100 in Health & Household ) #617 in 12V Batteries |
| Customer Reviews | 4.3 4.3 out of 5 stars (353) |
| Date First Available | May 22, 2020 |
| Item Weight | 13.4 pounds |
| Manufacturer | ExpertPower |
| Product Dimensions | 7.13 x 3.03 x 6.1 inches |

## Product Details

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

## Images

![ExpertPower 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exelent!!
*by A***R on November 25, 2025*

I purchased the ExpertPower 12V 21AH Gel Deep Cycle Battery and I’m very impressed with its performance. It holds a strong charge, delivers consistent power, and works perfectly for long periods without any issues. The battery arrived well-packaged and was easy to install. For the price, the quality and durability are excellent. Highly recommended if you need a dependable deep-cycle battery.

### ⭐⭐⭐⭐⭐ Good battery
*by R***N on August 20, 2025*

So far so good. I use it in my 66 aloha travel trailer to run my water pump. Holds a long charge.

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

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

## 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

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

---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-08*