Cmos Battery for HP Probook 4440S 4441S 4540S 4740S 683502-001

Description

Cmos Bios Clock battery (RTC Battery) that is for HP  Probook 4440S 4441S 4540S 4740S that are designed with the integration of Assembly # 683502-001  # 23.21212.033   or 740187-601
This will work on other brands and models though it's not being listed for other variation model needs.
The cmos bios battery being offered here are based on a 3 volt 210mah rating system board need, where what is required is a cable and 2 pin plug. The 2 pin plug is a
JST SHR-02V-S-B
1.0 mm type that is fitted to a receptacle on the system board for it's integration.
The renewal or replacement process might be something that can be somewhat challenging depending on the specific model of notebook, yet in most cases technical manuals will allow the scope of it's replacement process and allow owners to replace and renew the cmos battery.  If in doubt, please ask us to assist or redirect you to that source help.
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HP equipment, notebooks that came into the public market from 2008 forward, that have the motherboard bios provisions of
HP PC Hardware Diagnostics UEFI
to test the main components of your notebook computer.
This HP UEFI 2008 firmware has a internal diagnostic test that includes a battery health charge level, encompass the ability to alert the end user of the battery charge level associated with the internal battery (10.8v to 11.1v battery that subs for the ac/dc charger 100-240vac)
If you have a 601 battery error, contact HP,
or replace the internal battery not the rtc cmos battery.
HP motherboards nearly never have a charging circuit for the rtc cmos battery. Any attempt to charge a rtc battery can leak and explode due to internal heat pressure, that the rtc battery will never be subjected to in it's internal proper use.