---
product_id: 1699860
title: "Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery"
brand: "enersys"
price: "RM205"
currency: MYR
in_stock: true
reviews_count: 8
category: "Enersys"
url: https://www.desertcart.com.my/products/1699860-enersys-hawker-cyclon-0810-0004-d-cell-2-volt-2
store_origin: MY
region: Malaysia
---

# 10-year float life at 25°C 2.5 Ah high power density Up to 300 full charge cycles Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery

**Brand:** enersys
**Price:** RM205
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your essentials with a decade of dependable energy!

## Quick Answers

- **What is this?** Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery by enersys
- **How much does it cost?** RM205 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/1699860-enersys-hawker-cyclon-0810-0004-d-cell-2-volt-2)

## Best For

- enersys enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Versatile:** Minimal gassing means safe use in sensitive environments like offices, hospitals, and aircraft cabins.
- • **Enduring Cycle Life:** Experience 50%-200% longer battery life with up to 300 full discharge cycles—outlast your competitors.
- • **Decade-long Reliability:** Designed for a 10-year float life at 25°C, ensuring consistent standby power when you need it most.
- • **Power-packed Efficiency:** Maximize energy output with pure lead-tin tech delivering superior power density per weight.
- • **Stable Voltage Performance:** Enjoy smooth, low-resistance voltage delivery that keeps your devices running flawlessly.

## Overview

The Enersys Cyclon 0810-0004 is a sealed 2V, 2.5Ah pure lead-tin sealed lead acid battery engineered for high power density, exceptional cycle life up to 300 cycles, and a 10-year float life at 25°C. Its low internal resistance ensures stable voltage output, while minimal gassing makes it safe for use in sensitive environments. Ideal for emergency lighting, UPS systems, and specialized electronics, this compact battery delivers reliable, long-lasting performance.

## Description

A 2 volt 2.5 Ah pure lead sealed lead acid battery used in general applications such as emergency lighting UPS systems electronic equipment etc.

Review: Great batteries for the clock drive in your telescope - This is not for everyone but if you have a Celestron telescope like I do you will need these batteries for the clock motor. They are a but hard to find but here they are. The seem to last a very long time.
Review: Same part number as on old battery. - Exact replacement for my rechargeable flashlight from the 80s. Part number the same as on old battery.

## Features

- Power density - Per unit weight, the power provided by pure lead-tin products offers the greatest high-rate power density for your energy dollar. CYCLON's greater volumetric power allows engineers to consider more energy-supporting features.
- Cycle life - Compared to competitive lead products (offering up to 200 full cycles), pure lead-tin batteries provide 50% to 200% greater full cycle capability. CYCLON product will deliver up to 300 cycles (100% DOD, C/5).
- Float life - Conventional sealed-lead batteries vary greatly in specified standby life: from three to six years at 20oC, C/20. CYCLON Single Cells, however, offer a ten-year design life at 25oC, C/5, to 80% of rated capacity.
- High stable voltage delivery - The high stable voltage delivery of a pure lead-tin battery results from its low internal resistance. The flat discharge voltage profile of our batteries, similar to Nickel Cadmium.
- Safety - Since CYCLON Single Cells and Monoblocs emit minimal to no gassing under normal charging conditions they are safe for installation in offices, aircraft cabins, hospitals or any other environment occupied by human beings.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002ILK86 |
| Batteries | 1 Product Specific batteries required. |
| Best Sellers Rank | #506,001 in Automotive ( See Top 100 in Automotive ) #960 in Automotive Replacement Batteries |
| Date First Available | June 18, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6.4 ounces |
| Item model number | 0810-0004 |
| Manufacturer | Enersys |
| Product Dimensions | 1.35 x 1.35 x 2.68 inches |

## Product Details

- **Battery Capacity:** 2.5 Amp Hours
- **Battery Cell Composition:** Sealed Lead Acid
- **Brand:** Enersys
- **Number of Batteries:** 1 Product Specific batteries required.
- **Recommended Uses For Product:** UPS

## Images

![Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery - Image 1](https://m.media-amazon.com/images/I/41V1odZJCyL.jpg)
![Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery - Image 2](https://m.media-amazon.com/images/I/61RQ0zsVVDL.jpg)

## Questions & Answers

**Q: what would be the price for amount to 800 units? thank you**
A: On a quantity of 800 pcs the price is $8.50 each plus shipping. These batteries are in stock. https://www.amazon.com/Enersys-Hawker-Cyclon-0810-0004-Battery/dp/B0002ILK86/ref=sr_1_1?m=A2U296R8AN80PO&s=merchant-items&ie=UTF8&qid=1476725273&sr=1-1&refinements=p_4%3AEnersys

**Q: I'd like to order 2 of these - can you please combine the shipping cost?**
A: Shipping costs will vary between sellers. If you buy two of these batteries from us, the shipping should automatically be combined appropriately. As of this writing, 9/2/2015, the shipping for two would be $8.93 for shipping to the inner 48 states

**Q: What is the shelf life for these batteries?**
A: While a reliable answer to this question should come from the supplier or the manufacturer I can assure you that I have two of these batteries in an operating rechargeable flashlight since 1983 and two others in another flashlight since 2014 (bought new from Amazon) and they are all functioning splendidly holding their charges fully for months on end and accepting full charges with no signs of weakening.

**Q: I want to use these in a waterproofed D battery holder - the kind with the springs. Has anyone done this? If so what was your method?**
A: I haven't but with the spade terminals on top you could get connectors from like Radio Shack and remove the spring and contact plate from your battery holder and solder the new wires to them with the crimp connectors. Multiple battery's could be a room issue allowing for some space between batteries for the new terminals and something non conductive or electrical tape to insulate the terminals between batteries while connecting in series or what ever it needs. I think the bottoms are plastic so might not be an issue but good measure. Shouldn't be hard if there is space and later replacement would be an easy unplug and replace.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great batteries for the clock drive in your telescope
*by M***. on July 31, 2025*

This is not for everyone but if you have a Celestron telescope like I do you will need these batteries for the clock motor. They are a but hard to find but here they are. The seem to last a very long time.

### ⭐⭐⭐⭐⭐ Same part number as on old battery.
*by L***S on May 13, 2025*

Exact replacement for my rechargeable flashlight from the 80s. Part number the same as on old battery.

### ⭐⭐⭐⭐⭐ Great exact replacement
*by G***P on June 14, 2017*

These batteries are the exact replacement for my present device. They came with most of a full charge ready to use. My device now works like new. I highly recommend these batteries for high density power needs and exact replacement.

## Frequently Bought Together

- Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery
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- ML7-12 - 12 VOLT 7.2 AH SLA BATTERY - Mighty Max Battery brand product, black

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-09*