Does anyone know of a vendor with a higher cap (Watt hours) and safe battery for the N800? I love the all day thing, but my days have been getting longer and I keep leaving the Solio at home (or in the car) and random app CPU spikes can kill the battery and it's happening often enough for me to look into another battery.

I doubt a higher capacity battery will make a lot of difference to you working time, surely it would be much easier to have another battery that is charged and ready to be swapped.

I personally like the "cell phone emergency charger" devices. Energizer makes one, most retailers have them for $20 (ebay much, much less if you don't need it today!), or Wal-Mart has a generic case that takes 4AA batteries and has a USB port - just need to put a nokia power tip on a regular USB cable, I personally use this type of charger with 4 NiMH batteries. There are also 1 AA options, smaller of course, but less capacity. Either way, they're cheaper than a new battery, and I've clocked runtimes in excess of 18 hours playing music (no wifi on, if I remember right).

The solio looks cool i especially like the lithium aspect...

This would mean you could just let the thing charge up and tap into that charge at will (rather than charging n800 in 'real-time' waiting for sun).

Why on earth would you be looking for another solution if you have cables.... just remember the thing!! It looks like it can be charged off of wall power? If i were you i would either charge it up fully at night off of ac power (just using it mostly at battery pack)... or buy a cheap n800 ac charger to leave at (work?)

Is there some other aspect about the solio about it that is not good?

I bought a cheap "MaxxCell" battery from ebay, claiming "Max 1900mAh". It's not good, worse than the original.

Did they specify a Minimum?

(sorry, couldn't resist)

-Jonathan

check out the Powermonkey...just bought one from J&R...there's a thread on here i started about it!

It's common practice to advertise different capacities for the same battery. Even "legitimate" sellers do it, because there's quite a bit of variation between individual batteries, e.g. it could be 1100mAh or 1250mAh. But I've seen the same battery (for my PDA) being advertised as everything between 1100 and 1500 mAh. The truth is usually closer to the lower.