Gizmodo

The 12V Battery Hack that Saves You $40


Did you know what is inside some batteries? About $40-worth of savings, it seems. Cut open an A23 battery (cost: 94 ) and you'll find eight 1.5-volt button batteries, each of whose RRP is around $4.99. [KipKay via Spluch]

5:14 AM on Mon Aug 20 2007
By AddyDugdale
22,420 views