iPAQ 2200 Series Hi-Capacity Replacement Battery is a product offered by pdaparts. Instead of using HP 3600 mAh battery which is quite bulky, this 2000 mAh battery is only thicker than the standard battery. Your HP 2200 will looks a lot better with this than with the HP 3600 mAh battery.

It can still fit nicely to my leather case

Conclusion:

With the design, good performance and a $49.99 price tag, I will strongly recommend this to HP 2210 users. Currently it is out of stock in the  online store  so you might want to add yourself to the waiting list.