* It can charge your for X-360 controller directly with a controller charging cable.
* It can work 18 hours after charging and with a 4000mA battery pack in it.
* It can protect your X-360 controller with secure circuitry.
* It has overcharge protecting.
* You can take it in your bag on travel.
* Rechargeable cable: USB to DC 2.35 0.7 DC cable with direct plug.
* Battery pack: output voltage = DC2.4V.
* Capacity: 4000mAh
(via 4000mAh Battery Pack & Chargeable Cable for X 360 (Silver) @ focalprice.com $5.64)
