[snovvman]

I've written about this before but not in such detail. I do not believe the Diamond's built-in charger fully charges the battery. Here are the details I offered in another post:

This may not be true.

I have two Diamonds, four batteries, two different external chargers, and I have been doing some testing with the 1% driver installed. When using the Diamond to charge the battery, unpon unplugging, the battery will show somewhere between 91 and 97% immediately (usually between 94 and 96%).

When I use the charger from expansys, then put the battery in the phone, boot the phone (which consumes power), the battery will show somwhere between 96 and 99% after boot, but declines quickly down to the low-90s.

When I use a cheap universal charger from eBay, boot the phone, the battery will always show 100% and stay at 100% for up to 45 minutes. After that, it is a slow decline even down to 90%. I find that my battery life is better when I use this charger.

The above is the same for all four batteries and both Diamonds.

I don't believe there is a problem with the 1% driver. It is my belief, based on observation, that the built-in charger and the expansys charger are conservative and do not fully charge the battery. You may assert that the cheap eBay charger overcharges the battery. I've had that charger for a couple of years, and have used it on three other cellular phones' batteries, and have not seen a adverse effect on their service life.

Going with a 5% or 10% simply smooths the curve and masks the exact current level (having taken account of accuracy variations).

Another observation: Especially when the battery is below 50%, if I reboot the phone, the battery will often show a few points higher after boot. This may be within the margin of error.