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Common problems for Battery
We would like to share some of the most frequently asked questions about: Battery Reports, Hold a charge, Test and Calibrating Battery . Check out this link: Is your notebook plugged in and not charging?

‎11-11-2021 02:02 PM

HP Recommended
Product: Probook 6470b
Operating System: Microsoft Windows 10 (64-bit)

The battery on my Probook 6470b gave out and would not charge. I got a new battery (Ninjabatt replacement for HP). The computer works fine with the new battery but won't charge up, either and the battery is losing charge. When the AC power is plugged in, the charging light blinks in white 9 times and then goes off. Computer will not run without battery when plugged into charger. I suspect the charger is no good, but don't want to invest in another charger only to find that's not the problem. I visited this forum several times already and none of the advice was helpful. I pulled the battery, discharged the power button for 30 seconds, tried to upgrade the BIOS but BIOS update is blocked, pulled and re-installed the RAM and pushed F2 at startup for system diagnostics, only to find that my system diagnostics will only check hard drive, boot up options, and language. It does not have a diagnostics menu like that shown on many of the responses to this forum. Why does the charging light blink 9 times and go off? Maybe this is a error code, but I can't find it anywhere.

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