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Camera Battery (2 Units) Replacement for Canon BP-508, BP-511A, BP-512, BP-514, BP-511 - 1600mAh, 7.4V, Li-ion | 888301887
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Kastar 1 Pack BP-511 BP-511A Battery and AC Wall Charger Compatible with Canon EOS 5D EOS 10D EOS 20D EOS 20Da EOS 30D EOS 40D EOS 50D EOS 300D EOS D30 EOS
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Amazon.com : Synergy Digital Camera Battery, Compatible with Canon EOS 40D Digital Camera Battery Lithium-Ion (1500 mAh) - Replacement for Canon BP-511 Battery : Electronics