Astrum HP 550/610/6730S Battery ABT‑HP6720

Brand: Astrum
SKU: ABT‑HP6720
Manufacturer Part Number: ABT‑HP6720

Product Overview
The Astrum ABT‑HP6720 Replacement Battery is engineered for HP and Compaq laptops, including HP 550, 610, 6720S, 6730S, 6735S, and 6830S.
Operating at 10.8V with a 4400mAh capacity, this internal 6‑cell Li‑Ion battery ensures efficient energy storage, reduced memory effect, and consistent performance for students, professionals, and mobile users.
With advanced safety protections and durable construction, it provides reliable daily use while supporting sustainable practices.

Key Features
4400mAh high‑capacity design for extended unplugged productivity
Optimized compatibility with HP 550/610/6720S/6730S/6735S/6830S laptops
Premium 6‑cell Li‑Ion design with no memory effect
Multi‑protection circuit prevents overcharging, overheating, and short circuits
Certified safe: CE and RoHS compliant
Easy installation, no special tools required
Backed by a 12‑month warranty

Technical Specifications
Feature Specification
Voltage 10.8V
Capacity 4400mAh
Chemistry Li‑Ion
Cells 6‑Cell
Compatible Part No 451085‑121, 451085‑141, 451085‑142, 451085‑361, 451085‑621, 451085‑661, 451086‑001, 451086‑121, 451086‑141, 451086‑142, 451086‑161, 451086‑322, 451086‑361, 451086‑362, 451086‑421, 451086‑621, 451086‑661, 451568‑001, 456864‑001, 456865‑001, 464119‑142, 464119‑143, 464119‑162, 464119‑361, 464119‑362, 464119‑363, 484787‑001, 490306‑001, 491278‑001, 491279‑001, 491654‑001, 491657‑001, 496897‑001, 500764‑001, 500765‑001, 501870‑001, 572186‑001, 572187‑001, 572188‑001, 572189‑001, 572190‑001, 572191‑001, DD06, DD08, DD08063, GJ655AA, GJ655AA#ABH, HSTNN‑FB51, HSTNN‑FB52, HSTNN‑I39C, HSTNN‑I40C, HSTNN‑I48C‑A, HSTNN‑I48C‑B, HSTNN‑I49C, HSTNN‑I50C‑B, HSTNN‑I54C, HSTNN‑I64C‑5, HSTNN‑I65C‑5, HSTNN‑IB51, HSTNN‑IB52, HSTNN‑IB55, HSTNN‑IB62, HSTNN‑LB51, HSTNN‑LB52, HSTNN‑OB51, HSTNN‑OB51T, HSTNN‑OB52, HSTNN‑OB62, HSTNN‑XB51, HSTNN‑XB52, HSTNN‑XB62, KU532AA, NBP8A97, ABT‑HP6720
Safety Protections Overcharge, over‑discharge, overheat, short‑circuit
Warranty 12 months

Compatible Model Numbers
HP Series:
HP 550
HP 610

Compaq Series:
Compaq 6720S, 6720S/CT
Compaq 6730S, 6730S/CT
Compaq 6735S
Compaq 6820S, 6830S

Installation & Maintenance Tips
Power Off: Shut down the laptop and disconnect the AC adapter
Remove Old Battery: Unscrew and disconnect the old internal battery
Insert New Battery: Align and secure the Astrum battery in place
Initial Charge: Fully charge before first use for optimal performance
Care Tips: Avoid extreme temperatures; perform full discharge cycles monthly

What’s in the Box
1 × Astrum 10.8V 4400mAh Internal Battery (ABT‑HP6720)
1 × User Manual (with safety guidelines)