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Kastar 2-Pack 2.4V 1000mAh Ni-MH Battery Replacement for Sony BP-HP550-1 BPHP5501, BP-HP550-11 BPHP55011Battery, Sony MDR-IF245RK MDRIF245RK, MDR-RF4000 MDRRF4000, MDR-RF4000K MDRRF4000K Headphone

Kastar 2-Pack 2.4V 1000mAh Ni-MH Battery Replacement for Sony BP-HP550-1 BPHP5501, BP-HP550-11 BPHP55011Battery, Sony MDR-IF245RK MDRIF245RK, MDR-RF4000 MDRRF4000, MDR-RF4000K MDRRF4000K Headphone

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  • Kastar 2-Pack 2.4V 1000mAh Ni-MH Battery Replacement for Sony BP-HP550-1 BPHP5501, BP-HP550-11 BPHP55011Battery, Sony MDR-IF245RK MDRIF245RK,
    9.99
    Amazon.com

    Kastar 2-Pack 2.4V 1000mAh Ni-MH Battery Replacement for Sony BP-HP550-1 BPHP5501, BP-HP550-11 BPHP55011Battery, Sony MDR-IF245RK MDRIF245RK,

    Delivery date & cost shown at checkout

  • Kastar 1-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf4000rk Mdrrf4000rk, Mdr-rf4000-1 Mdrrf40001, Mdr-rf810 Mdrrf810, Mdr-
    6.99
    Walmart

    Kastar 1-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf4000rk Mdrrf4000rk, Mdr-rf4000-1 Mdrrf40001, Mdr-rf810 Mdrrf810, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 1-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-
    6.99
    Walmart

    Kastar 1-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 2-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf860rk Mdrrf860rk, Mdr-rf925 Mdrrf925, Mdr-rf925rk Mdrrf925rk, Mdr-
    9.99
    Walmart

    Kastar 2-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf860rk Mdrrf860rk, Mdr-rf925 Mdrrf925, Mdr-rf925rk Mdrrf925rk, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 3-Pack 2.4v 1000mAh Ni-MH Battery Replacement for Sony Bp-hp550-1 Bphp5501, Bp-hp550-11 BPHP55011Battery, Sony Mdr-if245rk Mdrif245rk, Mdr-
    12.99
    Walmart

    Kastar 3-Pack 2.4v 1000mAh Ni-MH Battery Replacement for Sony Bp-hp550-1 Bphp5501, Bp-hp550-11 BPHP55011Battery, Sony Mdr-if245rk Mdrif245rk, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 3-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-
    12.99
    Walmart

    Kastar 3-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 4-Pack 2.4v 1000mAh Ni-MH Battery Replacement for Sony Bp-hp550-1 Bphp5501, Bp-hp550-11 BPHP55011Battery, Sony Mdr-if245rk Mdrif245rk, Mdr-
    15.99
    Walmart

    Kastar 4-Pack 2.4v 1000mAh Ni-MH Battery Replacement for Sony Bp-hp550-1 Bphp5501, Bp-hp550-11 BPHP55011Battery, Sony Mdr-if245rk Mdrif245rk, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 5-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-
    18.99
    Walmart

    Kastar 5-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 5-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf860rk Mdrrf860rk, Mdr-rf925 Mdrrf925, Mdr-rf925rk Mdrrf925rk, Mdr-
    18.99
    Walmart

    Kastar 5-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf860rk Mdrrf860rk, Mdr-rf925 Mdrrf925, Mdr-rf925rk Mdrrf925rk, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 6-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-
    21.99
    Walmart

    Kastar 6-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf840rk Mdrrf840rk, Mdr-rf840rj Mdrrf840rj, Mdr-rf850 Mdrrf850, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 6-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf860rk Mdrrf860rk, Mdr-rf925 Mdrrf925, Mdr-rf925rk Mdrrf925rk, Mdr-
    21.99
    Walmart

    Kastar 6-Pack Bp-hp550-11 2.4v 1000mAh Ni-MH Battery Replacement for Sony Mdr-rf860rk Mdrrf860rk, Mdr-rf925 Mdrrf925, Mdr-rf925rk Mdrrf925rk, Mdr-

    Delivery date & cost shown at checkout

  • Kastar 1000mah Battery For Sony Mdr-rf4000k Mdrrf4000k Mdr-rf4000rk
    21.99
    eBay

    Kastar 1000mah Battery For Sony Mdr-rf4000k Mdrrf4000k Mdr-rf4000rk

    Delivery date & cost shown at checkout

  • Kastar 1000mah Battery For Sony Mdr-rf840rk Mdrrf840rk Mdr-rf840rj
    21.99
    eBay

    Kastar 1000mah Battery For Sony Mdr-rf840rk Mdrrf840rk Mdr-rf840rj

    Delivery date & cost shown at checkout

  • Kastar 2.4v 1000mah Battery For Sony Bp-hp550-1 Bphp5501 Bp-hp550-11
    21.99
    eBay

    Kastar 2.4v 1000mah Battery For Sony Bp-hp550-1 Bphp5501 Bp-hp550-11

    Delivery date & cost shown at checkout

  • Kastar 2.4v 1000mah Battery For Sony Bphp80011 Mdr-rf995 Mdr-rf995rk
    21.99
    eBay

    Kastar 2.4v 1000mah Battery For Sony Bphp80011 Mdr-rf995 Mdr-rf995rk

    Delivery date & cost shown at checkout

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Product Details

High Capacity: No longer to worry about the endurance of the batteries, Kastar high capacity battery will provide ultra strong power for your headphone to performance well and operate longer.
Battery Specification: Battery Type: Ni-MH; Battery Voltage: 2.4V; Battery Capacity: 1000mAh; Battery Dimensions: 1.8" x 0.9" x 0.45" (46.00 x 23.00 x 11.3mm).
Safety Assurance: Kastar add mix-protection additive to the cathode of batteries, protect the material from degradation in the progress of charge and discharge, extend lifespan up to 1200 cycles.
Low self-discharge: Embedded seal structure expand the space of crystal lattice, make more room for hydrogen, so Kastar batteries will holds power longer than others.
Environmental Protection: Ni-MH eco-friendly cell, doesn't contain Hg/Cd/Pb, makes no pollution to the environment, and using DBCK steel shell which can protect the battery against explosion due to overpressure.

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