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HENREEPOW Ni-MH AA Rechargeable Batteries, Double A Regular Capacity 1.2V Pre-Charged for Garden Solar Lights, String Lights and Other Everyday Electronic (Low Power) Devices. (AA-600mAh-12pack): Amazon.co.uk: Electronics & Photo
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AA AAA Rechargeable Solar Light Batteries 600mAh 400mAh 300mAh NiMH 1.2V UK | eBay