RB-16: 1.2 volt 1650mAh rechargeable NiMH AA battery for use in Braun, Norelco, Remington cordless razors. Includes solder tabs. Fits Ronson RFS-3, Windmere RFS3, Remington DA307, DA407, M2810, M2820, Acme Medical Scale 2215, 5001, 7201, 7301, 7401, 8500, Braun 5556U, and Norelco models 600RX, 138-10584, 5601X, 5602X, 7800XL, 5603X, 5605X, 5810XL, 5811XL, 5814XL, 5818XL, 6890XL, 6891XL, 7800XL, 8880XL, 8890XL, 8891XL, 8892XL.
CHECK YOUR RAZOR BEFORE ORDERING - some models operate on 1 battery; others need 2 batteries.