best heart rate monitor ?

I've got a Garmin 305 Forerunner which is great but it has to be recharged every 8-10 hours or so .
I'm doing an End to End later in the year and want a HRM that has its own battery ,i.e like the Polar ones ,and preferably with GPS for mileage accuracy , but not essential , time in zones and I'd like to download my info .
What do you use ?
Has anyone used the Mavic Wintech computers ?
I'm doing an End to End later in the year and want a HRM that has its own battery ,i.e like the Polar ones ,and preferably with GPS for mileage accuracy , but not essential , time in zones and I'd like to download my info .
What do you use ?
Has anyone used the Mavic Wintech computers ?
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Have a look at the Suunto HRM's. I bought a Suunto T6 in 2006 and it is one of the best pieces of kit I own. The feature list is as long as your arm and used with the Bike Pod and Foot Pod gives and the Training Manager SW it gives you heaps of usable data that helps you see the quality of your training sessions and how your performance is getting better / worse over time.
I can't recomend this highly enough, I wouldn't be without it.
Can I ask why HR is so important for your End-End? Are you trying to do it as quick as possible or something?
GPS needs a lot of power so unlikely you'll find anything that will last a whole end-to-end that isn't the size of a brick
The Garmin 705 does about 15 hours at a stretch though, and does all the things you want in one unit.
Are you going to carry several spare batteries on your end-end then?
Have you thought about using something like a power monkey (or similar external power running on AAs) for your Edge?
The Polar batteries last for months as far as I'm aware ,but the GPS is supposed to be poor as reviewed by bike radar of the 300 model a few weeks ago .
I think I'll have a look at the Polar 625 though and ditch the GPS idea unless something else comes out in the next few months .