Option DC Plug modification for easy charge rechargeable battery, IBVA works over 8 hours continuously.
How to do modification.
1: Current IBVA User : need to send back unit to Psychic Lab.
User need to pay Total modification cost + S/H for both way.
2: New User : need to order this option when order IBVA.
User need to pay cost of IBVA + Total modification cost + S/H for one way.
Modification time.
Depend on stock of parts, few days to few weeks.
After this modification end user can not replace battery.
8 Hours continuously operation : 3000 mAH Li-Ion battery
About 6 Hours charge time after full discharge.
100 V to 240 V AC 50 / 60 Hz charger.
DC Plug modification + Li-Ion battery + Charger : Total cost : $120
1 year battery warranty. Need to send back IBVA unit for replace battery.
Battery replacement cost : $40 + both way S/H for IBVA unit
S/H : Shipping and Handling fee
User replaceable battery:
Alkaline 9V battery : 1.5 H operation
Li-Ion re-chargeable 9V 500 mAH battery : 2.5 H operation
Li-Polymer re-chargeable 9V 520 mAH battery : 2.5 H operation
http://www.bhphotovideo.com/c/product/627506-REG/iPower_IP9V520_9V_Li_Polymer_520mAh_Battery.html
Li-Ion re-chargeable 7.4V 1000 mAH battery : 4 H operation