---
product_id: 176077043
title: "CS03XL Laptop Battery for HP EliteBook 840 850 755 745 G3 G4 ZBook 15u G3 G4 Series 800513-001 800231-1C1 800513-001 CS03 CS03046XL HSTNN-IB6Y HSTNN-UB6S HSTNN-I33C-4"
brand: "dmkaollk"
price: "€ 60.03"
currency: EUR
in_stock: true
reviews_count: 8
category: "Dmkaollk"
url: https://www.desertcart.hr/products/176077043-cs03xl-laptop-battery-for-hp-elitebook-840-850-755-745
store_origin: HR
region: Croatia
---

# 11.4V stable voltage 48Wh high-capacity power Includes 2 screwdrivers for easy install CS03XL Laptop Battery for HP EliteBook 840 850 755 745 G3 G4 ZBook 15u G3 G4 Series 800513-001 800231-1C1 800513-001 CS03 CS03046XL HSTNN-IB6Y HSTNN-UB6S HSTNN-I33C-4

**Brand:** dmkaollk
**Price:** € 60.03
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity with effortless, certified battery replacement!

## Quick Answers

- **What is this?** CS03XL Laptop Battery for HP EliteBook 840 850 755 745 G3 G4 ZBook 15u G3 G4 Series 800513-001 800231-1C1 800513-001 CS03 CS03046XL HSTNN-IB6Y HSTNN-UB6S HSTNN-I33C-4 by dmkaollk
- **How much does it cost?** € 60.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/176077043-cs03xl-laptop-battery-for-hp-elitebook-840-850-755-745)

## Best For

- dmkaollk enthusiasts

## Why This Product

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

## Key Features

- • **Extended Lifespan:** Supports up to 1000 recharge cycles, giving your laptop a new lease on life.
- • **Certified Reliability:** Meets CE/FCC/ROHS/UL standards for safety and performance you can trust.
- • **Perfect Compatibility:** Seamlessly fits HP EliteBook 745/755/840/850 G3 & G4 and ZBook 15u G3 & G4 series—no guesswork needed.
- • **Plug & Play Simplicity:** Comes with precision screwdrivers and clear instructions—DIY battery replacement made effortless.
- • **Power Through Your Day:** 48Wh capacity delivers long-lasting energy to keep your EliteBook running strong.

## Overview

The CS03XL Laptop Battery is a high-capacity 48Wh Li-polymer replacement battery designed for HP EliteBook and ZBook series laptops. It delivers stable 11.4V power, supports up to 1000 recharge cycles, and includes two screwdrivers for easy installation. Certified to meet CE, FCC, ROHS, and UL standards, this battery offers reliable performance and perfect compatibility with multiple HP laptop models, extending your device’s lifespan with professional-grade quality.

## Description

desertcart.com: DMKAOLLK CS03XL Laptop Battery for HP EliteBook 840 850 755 745 G3 G4 ZBook 15u G3 G4 Series 800513-001 800231-1C1 800513-001 CS03 CS03046XL HSTNN-IB6Y HSTNN-UB6S HSTNN-I33C-4 : Electronics

Review: Easy to install, tools included, working well so far. - Perfect fit, good instructions, and the tools to install. Hard to rate quality and battery life, haven't tested it. Seemed to perform as well as the original during the "seasoning" of the battery... Charge fully, discharge fully... 3x's... You can see from the picture the old battery was no longer any good; everything matched and fit perfectly. The other pictures show the location of the battery and how it drops into place. If you're questioning your technical skills, give it a try anyway... just have the local 12 year old on standby in case you have trouble. If your closeup vision isn't very good and bright light doesn't help, you probably want to have someone else do this, those little screws on the bottom of the laptop are the hardest part of this process. Fear not... but use a white towel and good lighting and you'll be fine... The hardest part about changing the battery on the HP laptop was not losing the tiny screws. Recommend placing the laptop on a white or solid light colored towel so you don't scratch the case and if the screws fall out of the bottom you'll find them easily. There's no reason why anyone could not replace this battery themselves. The instructions are clear and the tools will work fine, just do NOT overtighten or force them. The tools seem to be intended to be used once or twice. There is no real danger of damaging your laptop, just don't fiddle with things you don't understand when you're in there. Excellent value for the battery. When my other HP needs a battery I'll be buying this product again.
Review: Empowerment! - Flawless Installation. Product installed and worked immediately. No issues with installation. Excellent directions. Very satisfied. Extended the life of my hp EliteBook for pennies on the dollar over OEM part. At this price and ease of install, even if the battery only lasts several months, it is still value for the coinage. It will be interesting to see what the actual product Longevity will turn out to be down the road. - Happy Camper

## Features

- Battery Name:CS03XL, Battery Type: Li-polymer Voltage: 11.4V Capacity: 48WH ; Cells: 4-cell; Color: Black with Two Screwdrivers
- Compatible Mode: CS03XL Battery for HP Elitebook 745 G3; HP EliteBook 745 G4; HP EliteBook 755 G3; HP EliteBook 755 G4; HP EliteBook 840 G3; HP EliteBook 840 G4; HP EliteBook 850 G3; HP ZBook 15u G3; HP ZBook 15u G4;
- Compatible P/N: CS03 CSO3 CS03XL CSO3XL HSTNN-I33C-4 HSTNN-I33C-5 HSTNN-I41C-4 HSTNN-I41C-5 HSTNN-IB6Y HSTNN-UB6S 3ICP6/65/79 800231-141 800513-0
- Our CS03XL Battery is highly compatible with the original HP CS03XL Battery HP Elitebook 840 G3 Battery replacement and meets CE/FCC/ROHS/UL certified standards. It is a brand-new product from the manufacturer and supports up to 1000 recharge cycles.
- What You Get: CS03XL Battery, 2 Screwdrivers, User Manual for HP Elitebook 840 G3 Battery，Elitebook 840 G3 Battery

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0833ZXF8N |
| Antenna Location | Laptop |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 10 Ounces |
| Best Sellers Rank | #4,906 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #190 in Laptop Batteries |
| Brand | DMKAOLLK |
| Compatible Phone Models | CS03XL 800513-001 Battery for HP EliteBook 840 G3,HP EliteBook 840 G4,HP EliteBook 850 G3,HP EliteBook 850 G4,HP Elitebook 745 G3,HP EliteBook 745 G4,HP EliteBook 755 G3,HP EliteBook 755 G4,HP ZBook 15u G3,HP ZBook 15u G3,HP ZBook 15u G4 Series Laptop Battery |
| Customer Reviews | 4.5 out of 5 stars 270 Reviews |
| Item Dimensions | 7.7 x 4 x 0.25 inches |
| Manufacturer | DONG GUAN BOYU ELECTRONICS CO., LTD |
| Model Name | CS03XL |
| Model Number | JC04 |
| Number of Batteries | 1 A batteries required. |
| Recommended Uses For Product | Laptop |
| Reusability | Rechargeable |
| UPC | 751565178986 |
| Unit Count | 1 Count |
| Voltage | 11.4 Volts |
| Warranty Description | 12 Months Warranty from the Purchase of date and 60 days Money Back guarrantee,the return window will be closed a month after you received the the product,Please don't worry about it. Please contact us through the your orders page or from the seller detail page that is available by clicking on the seller's name in the"sold by" section of the product page. |

## Product Details

- **Number of Batteries:** 1 A batteries required.
- **Brand:** DMKAOLLK
- **Battery Cell Composition:** Lithium Polymer
- **Recommended Uses For Product:** Laptop
- **Unit Count:** 1 Count

## Images

![CS03XL Laptop Battery for HP EliteBook 840 850 755 745 G3 G4 ZBook 15u G3 G4 Series 800513-001 800231-1C1 800513-001 CS03 CS03046XL HSTNN-IB6Y HSTNN-UB6S HSTNN-I33C-4 - Image 1](https://m.media-amazon.com/images/I/71O-Zm7bpsL.jpg)

## Questions & Answers

**Q: 1.What do we need to pay attention to using batteries for the first time?**
A: 1.The battery must be full charged before first use 2.You need to turn off your laptop and disconnect the power when you install a new battery 2.Do Discharge the new battery use to 5%/7%(not to 0%) and then charge to 95%, and cycle 3-4 times

**Q: How should I do if the battery is not recognised?**
A: When the computer is turned on, if it is not recognised, it is recommended to update the BIOS settings or please disconnecting the old battery, and holding down the power button for 20 seconds, then connect the new battery

**Q: How should I do if we received the item doesn't work?**
A: Our itme have 12 months replace a new one and 60 days moeny back guarrante. please Contact DMKAOLLK INC .we will replace it with a new one for free.

**Q: How should I charge my laptop battery?**
A: It is suggested to charge the battery before the power runs out completely. It is best to charge when the remaining power is about 5-10%, and the battery should be charged in a relatively dry place.

**Q: How should I preserve my laptop battery when I don’t use it?**
A: The ideal preservation method is to charge the battery to about 40%.the battery should be used once a month, which can not only good preservation of the battery but also prevent the battery from being damaged by the complete loss of power

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install, tools included, working well so far.
*by J***R on September 3, 2023*

Perfect fit, good instructions, and the tools to install. Hard to rate quality and battery life, haven't tested it. Seemed to perform as well as the original during the "seasoning" of the battery... Charge fully, discharge fully... 3x's... You can see from the picture the old battery was no longer any good; everything matched and fit perfectly. The other pictures show the location of the battery and how it drops into place. If you're questioning your technical skills, give it a try anyway... just have the local 12 year old on standby in case you have trouble. If your closeup vision isn't very good and bright light doesn't help, you probably want to have someone else do this, those little screws on the bottom of the laptop are the hardest part of this process. Fear not... but use a white towel and good lighting and you'll be fine... The hardest part about changing the battery on the HP laptop was not losing the tiny screws. Recommend placing the laptop on a white or solid light colored towel so you don't scratch the case and if the screws fall out of the bottom you'll find them easily. There's no reason why anyone could not replace this battery themselves. The instructions are clear and the tools will work fine, just do NOT overtighten or force them. The tools seem to be intended to be used once or twice. There is no real danger of damaging your laptop, just don't fiddle with things you don't understand when you're in there. Excellent value for the battery. When my other HP needs a battery I'll be buying this product again.

### ⭐⭐⭐⭐⭐ Empowerment!
*by M***M on August 2, 2025*

Flawless Installation. Product installed and worked immediately. No issues with installation. Excellent directions. Very satisfied. Extended the life of my hp EliteBook for pennies on the dollar over OEM part. At this price and ease of install, even if the battery only lasts several months, it is still value for the coinage. It will be interesting to see what the actual product Longevity will turn out to be down the road. - Happy Camper

### ⭐⭐⭐⭐⭐ Meets original specs.
*by H***A on April 2, 2026*

The capacity of my battery was 46.74Wh, which slightly exceeds the specs on the original HP battery. The current max is 100%, so it's brand new. My experience with third party batteries is that they often fall short of the original specs, but this one was the real deal.

## Frequently Bought Together

- DMKAOLLK CS03XL Laptop Battery for HP EliteBook 840 850 755 745 G3 G4 ZBook 15u G3 G4 Series 800513-001 800231-1C1 800513-001 CS03 CS03046XL HSTNN-IB6Y HSTNN-UB6S HSTNN-I33C-4
- 65W Laptop Charger for HP EliteBook Charger 840 850 845 830 820 G9 G8 G7 G6 G5 G4 G3 / ProBook 640 650 450 430 440 446 455 470 745 735 725 755 Power Cord
- ASUNCELL 933321-855 SS03XL Battery for Hp EliteBook 840 g5, EliteBook g6 730 735 740 745 830 840 846 ZBOOK 14U G5 HSN-I12C HSN-I13C-4 Series Notebook 932823-421 50Wh 11.55V

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-26*