Areca battery backup issue

migit128

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Sep 6, 2009
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I have an ARC-1880i with a bbu. I recently went on vacation and unplugged the computer. When I got back, the raid card would not post. It'd get stuck on that waiting screen. When I unplugged the battery backup unit from the raid card, it posted fairly quickly. I started troubleshooting a few days later and when the computer was powered on and the raid bios was trying to post the bbu had a red light on it. When I turn the computer off the bbu beeps every few seconds and has a green light.

I suspect the bbu either failed while I was gone or drained all its power. If it's completely drained, how can I charge it back up? When the computer is on (and stuck trying to have the raid card post continuously) or when the computer is turned off?

Thanks!