---
product_id: 1133957
title: "EXP1233-3.3Ah 12V Battery Sealed Lead Acid, Replacement for Back-UPS ES 350, BE350E, BE350C, BE350R, BE350U, 12 Volt Rechargeable UPS Battery"
brand: "expertpower"
price: "S$71"
currency: SGD
in_stock: true
reviews_count: 13
category: "Expert Power"
url: https://www.desertcart.sg/products/1133957-exp1233-3-3ah-12v-battery-sealed-lead-acid-replacement-back
store_origin: SG
region: Singapore
---

# 3.3A high current output 12V high-capacity power AGM sealed & maintenance-free EXP1233-3.3Ah 12V Battery Sealed Lead Acid, Replacement for Back-UPS ES 350, BE350E, BE350C, BE350R, BE350U, 12 Volt Rechargeable UPS Battery

**Brand:** expertpower
**Price:** S$71
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your peace of mind — never get caught powerless again!

## Quick Answers

- **What is this?** EXP1233-3.3Ah 12V Battery Sealed Lead Acid, Replacement for Back-UPS ES 350, BE350E, BE350C, BE350R, BE350U, 12 Volt Rechargeable UPS Battery by expertpower
- **How much does it cost?** S$71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/1133957-exp1233-3-3ah-12v-battery-sealed-lead-acid-replacement-back)

## 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

- • **Easy Installation:** F1 terminals guarantee secure, hassle-free connections for quick battery swaps.
- • **Extended Lifespan:** Premium materials and design provide long shelf life and consistent power when you need it most.
- • **Reliable Power Backup:** Seamlessly powers your APC UPS ES 350 and compatible devices, ensuring zero downtime.
- • **Durable & Shock-Resistant:** Rugged ABS casing and vibration-resistant build protect against shocks and storage wear.
- • **Maintenance-Free AGM Tech:** Valve-regulated Absorbent Glass Mat design delivers safe, spill-proof, and long-lasting performance.

## Overview

This 12V replacement battery for APC Back UPS ES 350 features advanced AGM sealed technology for maintenance-free, high-current performance. Designed with durable ABS casing and vibration resistance, it ensures reliable power backup for your UPS and compatible devices. Easy to install with F1 terminals, it offers extended lifespan and safe operation, making it the perfect upgrade to keep your critical electronics running smoothly.

## Description

Buy Replacement Battery for APC Back UPS ES 350: 12V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: perfect fit - Works great! Easy, cheap way to extend your UPS :)
Review: Perfect replacement - It fit, and it seems to work great in my APC power backup unit.

## Features

- AGM Sealed APC UPS Battery: Absorbent Glass Mat technology with valve-regulated, sealed construction provides high current on demand, extended service life, and safe, maintenance-free operation.
- User-Friendly: Our 12V rechargeable battery is equipped with F1 terminals for secure connections and easy installation in compatible devices and systems.
- Replacement & Compatibility: Compatible with APC power backup units, ES 350, BE350E, BE350C, BE350R, BE350U alarm, security system, and more 12 Volt battery models. Suitable as lawn mower battery.
- Durable Build: Features a sturdy ABS case and vibration-resistant design that endures shocks and long periods of storage without performance loss.
- Long Life: Built with premium materials for extended shelf life and long-term durability, with dimensions of 5.28"L x 2.64"W x 2.4"H. Total height with terminals: 2.64 inches.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006X98A7C |
| Amperage | 3.3 Amps |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #64,111 in Health & Household ( See Top 100 in Health & Household ) #119 in 12V Batteries |
| Brand | ExpertPower |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,792) |
| Date First Available | January 14, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.8 pounds |
| Item model number | EXP1233 |
| Manufacturer | ExpertPower |
| Manufacturer Part Number | EXP1233 |
| Product Dimensions | 5.28 x 2.63 x 2.42 inches |
| Safety Rating | DOT Certified |
| Voltage | 12 Volts |

## Product Details

- **Battery Capacity:** 3.3
- **Battery Cell Composition:** Lead Acid
- **Brand:** ExpertPower
- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Recommended Uses For Product:** Scooters,Ups,Wheelchairs

## Images

![EXP1233-3.3Ah 12V Battery Sealed Lead Acid, Replacement for Back-UPS ES 350, BE350E, BE350C, BE350R, BE350U, 12 Volt Rechargeable UPS Battery - Image 1](https://m.media-amazon.com/images/I/51SC13CeR+L.jpg)

## Questions & Answers

**Q: Recommended charger**
A: We recommend a 12V charger specifically designed for AGM batteries. The charging current should not exceed 660mA.

**Q: What is the difference between standby and cycle use for the battery?**
A: Standby Use: The battery primarily serves as a backup power source with minimal discharge. Cycle Use: The battery undergoes frequent deep discharges and recharges.

**Q: What does "EXP" mean on the battery?**
A: The "EXP" on the battery stands for our brand name, ExpertPower. It does not indicate an expiration date.

**Q: Will this battery be compatible with my device?**
A: To ensure compatibility, please verify the battery dimensions and terminal sizes match your device's specifications before purchasing.

**Q: What is your return policy?**
A: Enjoy a 90-day refund window more on items by "ExpertPower Direct". Need help? Message us via Amazon's "Contact Seller" for prompt assistance.

## Customer Reviews

### ⭐⭐⭐⭐⭐ perfect fit
*by J***H on October 9, 2025*

Works great! Easy, cheap way to extend your UPS :)

### ⭐⭐⭐⭐⭐ Perfect replacement
*by B***C on November 9, 2025*

It fit, and it seems to work great in my APC power backup unit.

### ⭐⭐⭐⭐⭐ Great Product
*by P***N on December 6, 2025*

New battery works great.

## Frequently Bought Together

- Replacement Battery for APC Back UPS ES 350
- Mighty Max Battery ML7-12 - 12V 7.2AH Replacement UPS Battery for APC Back-UPS 550 BE550G
- AJC Battery Compatible with APC Back-UPS ES 550 8 Outlet 550VA BE550R 12V 7Ah UPS Battery

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**Shop now:** [https://www.desertcart.sg/products/1133957-exp1233-3-3ah-12v-battery-sealed-lead-acid-replacement-back](https://www.desertcart.sg/products/1133957-exp1233-3-3ah-12v-battery-sealed-lead-acid-replacement-back)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-21*