Here's a quick way to test if your AA batteries are dead
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Universal Battery Test Checker for AA AAA C D 9V 1.5V Button Coin Cell Battery capacity tester - BT-168: Amazon.com: Electronics
Battery Voltage Meter, Digital Battery Testers for AA / AAA / C / D / 9V / 1.5V, LCD Display, Button Battery, BT-168D: Amazon.com: Electronics
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