As an astronomer I would always lose battery life fast out in the field on cold nights. This mega battery from HP was the answer. While it doesn't live up to the hype of the 32 hour claim, well short of it, the BB09 will keep you going all night with power to spare. I should note I require full use with all power saving features disabled.
Verified purchase: Yes | Condition: New
This is an excellent long lasting battery, as described buy the seller. The first 3 days after charging it, I used my Elitbook Notebook Laptop approximately 3 hours each day without having to recharge the battery. I am very satisfied with this product. I can now take my laptop on extended trips from home without having to worry about a low battery count. I highly recommend it for those of you that are always on the go.
Verified purchase: Yes | Condition: New
Easy way to double the battery life of a compatible HP laptop. I get 8hrs+ with it plugged into a Zbook 17 instead of 4hrs max. With the primary battery alone. Surprisingly retained most of its capacity after 7 years in the box.
Verified purchase: Yes | Condition: New
GREATLY extended battery life, from about 60-90 min to 5-8hrs depending on whether you're editing a Word doc or something very intensive like CAD/Video editing or running Virtual Machines Now I can use my Workstation for up to a full work day without needing to plug in to AC power.
Verified purchase: Yes | Condition: New
Initially when plugged in the battery indicated that it was dead. Gave it overnight to charge and it made my laptop a powerhouse. I easily can get 10+ hours on a charge
Verified purchase: Yes | Condition: Pre-owned
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