Proporta 11076 Lithium-Ion 2200mAh 3.7V rechargeable battery

Extended Battery for iPAQ 65 / 69xx We’ve all been there when our device runs out of battery and we’re unable to charge up. Well now you can keep a fully charged spare battery with you when you're away from a power source and continue making good use of your HP iPAQ hw6500 / hw6900.

Note - This battery is physically thicker than the standard battery, but it comes with a replacement "extended" battery cover.