So I recently bought a Subox Mini from KangerTech and I didn't realize it did not come with the rechargeable 18650 battery it needs. I ordered one online but when I was waiting for it I found out you can salvage 18650's from old laptop batteries, which was conviniente because I had a battery from an old Mac. I cracked it open and 9 18650's but when I tried putting one in my box it just shut down and would no longer turn on when I put the power cord in. Before I had a battery the box would turn on when I plugged it in but turn off when I unplugged it. Now it wont even do that, even when I take the 18650 from the mac battery out. PLEASE HELP.