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Amazon.com: Gomadic Portable AA Battery Pack Designed for The Garmin etrex 10 20 30 - Powered by 4 X AA Batteries to Provide Emergency Charge. Built Using TipExchange Technology : Electronics
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Amazon.com: Garmin eTrex 20x, Handheld GPS Navigator, Enhanced Memory and Resolution, 2.2-inch Color Display, Water Resistant : Electronics
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