Amazon.com: BoxWave Charger Compatible with Nikon D3100 (Charger by BoxWave) - Digital Camera Battery Charger, Car Charger for Camera Batteries for Nikon D3100, Nikon D3100 | Coolpix P7000 : Electronics
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Battery Charger for Nikon EN-EL14 EN-EL14a P7100 P7000 D5100 D3100 D32 – The Pixel Hub