Bro,
Heard that with OS v4.6.0.127 above will solve the batt issue. 2 days or so and still ~40-50% left. With medium usage. Don't know if it'll work. Just don't wanna screw-up the BOLD right now. Upgrading OS can be risky biz. :D
I'll monitor the situation of the BOLD and get more info from those that upgraded to .127 or .144 as we've seen on this forum. If problem persists, then will have to upgrade, no choice.
Cheers!