Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Does this battery work with the Panasonic HC-W850 Camcorder?
Document: Purchased this battery pack to go with the Panasonic HC-V520. After a full 24 hour charge the full charge time is 4 hours and 05 minutes which is much better than the 1 hour 44 minute battery the camera came with. If they had a longer life battery I would purchase it. Aftermarket batteries should be on the market in April 2014.
The battery is manufacturer made &#34;double capacity&#34; and performs as stated. Do note that it sticks out at the rear of the camcorder by approximately an inch.
There is no reason for this and this is the best way to basically tell potential customers that they are not worth your time. I've been attempting to get an extended battery for my camcorder for the past 6 months. I can't give feedback since the order got cancelled, so I'm forced to write this review to let others know that they may never see this battery either.Edit: Amazon helped me re-instate the order. We'll see if I happen to actually get it in the next 2 months.
This is a must if you're out shooting videos all day. The battery that comes with the camera will last about an two hours.
This battery allows me to record hours without the need to be changing the battery every hour, the duration of load is very good, giving me freedoms to record and avoiding carry a lot of batteries.
Have attempted to order and due to extended backorder (aka Amazon does not have it and apparently can't get it either) the order gets pushed out and they need my approval to continue the backorder, but won't use the previously selected payment method (reward points) to complete the order extension approval which leaves me only the option to cancel. Since I'm unable to order the battery, I can't give anything more than 1 star.
up to 5 hours of recording. a must if you carry a 64 gig card like I do.
No complaints so far, but I haven't used it much...
Answer: Yes, I bought it and use it with my HC-W850K and it lasts for about 5 hours.