There have been a few new Airshield post recently so I thought I would post the success of my installing an "ion-drive" to my own. The NiCd battery pack for the Airshield costs around $40 pluss S&H and tax where applicable. I retrofitted 3.7v Li ion batteries from Battery Junction using a compariable plug from Radio Shack and some connector wire and a bit of solder. I also bought a smart charger for the batteries. Easy task and the cost per battery is around $5 each. Two of these batteries powered my Airshield for 16 hours before I got tired of trying to wait for the juice to run out and I just turned it off. So, clearly these out last the OEM packs by many hours (the best I couold get out of the OEMs was 7 hours run time on two). Pictures below...
Name Code Qty Each Options
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Universal Smart Charger TLP-2000 1 $19.95
for Li-Ion battery Pack
(3.7V - 14.8V, 1-4 cells)
(Shipped)
Lithium-Ion 18650 3.7V 186502200PTC 4 $5.29
2200 mAh rechargeable
battery with TAB with PTC
Subtotal 41.11
Shipping 8.15
Tax 0.00
Total 49.26
My next job is to retrofit a good replacement for the internal filter...
