Originally Posted by ARKANSAS WHITETAILER View Post
That particular vest is made by activheat. They have their own website you can order from. The one you are looking at from brookstone has a awfully small battery pack for 5 hours. My battery pack is larger but I believe was advertised for 10 hours use and I know it will work consistantly for 6 to 8 hours. It does not state on your site but mine came with 2 batteries and a 2 chargers (1 wall A/C and 1 Auto 12volt) for around $165.
does it say anywhere on the battery what the amperage rating is? It should say something like "4400mAh".