Equivalent to original battery model # SONY NH-14WM/ NH-9WM/ NH-10WM ; Energizer ER-GUM1 ; Aiwa MHB 901; PANASONIC HHF-AZ201S/ HHF-AZ01T/ RP-BP61/ ; SHARP AD-N55BT ; VICTOR BN-R129. For - Aiwa Player AM-HX100 - Aiwa Player AM-HX150 - Aiwa Player AM-HX200 - Aiwa Recorder AM-F90 - JVX/Vicot XM-P55SL - Kenwood Player DMC-P55 - Panasonic Player SJ-SW9MD - Panasonic Player SJ-SW90MD - Panasonic Player MJ88 - Panasonic Player MJ80 - Sharp MD-MT877 - Sharp MD-MT77 - Sharp MD-ST70 - Sharp MD-ST66 - Sony Portable MD Player MZ-N1 - Sony Portable MD Player MZ-N10 - Sony Portable MD Player MZ-NF810CK - Sony Portable MD Player MZ-R909 - Sony Portable MD Player MZ-R900 - Sony Portable MD Player MZ-R91 - Sony Portable MD Player MZ-R90 - Sony Portable MD Player MZ-E810SP - Sony Portable MD Player MZ-700 - Sony Portable MD Player MZ-E610 - Sony Portable MD Player MZ-E520 - Sony Portable MD Player MZ-E510 - Sony Portable MD Player MZ-E90 - Sony Portable MD Player MZ-E75 - Sony Portable MD Player MZ-E70 - Sony Portable MD Player MZ-E55 - Sony Portable MD Player MZ-E44 - Sony Portable MD Player MZ-E33 - Sony Portable MD Player MZ-E35 - Sony Portable MD Player MZ-E30 - Sony Portable MD Player MZ-E25 - Sony Portable MD Player MZ-E10 - Sony Portable MD Player MZ-E7W - Sony Portable MD Player MZ-EP11 - Sony Portable MD Player MZ-EP10 - Sony Portable MD Player MZ-E5 - Sony MP3 Player NW-MS9 - Sony MP3 Player NW-MS11 and other audio devices.

REVIEWS:
1) StreamSonic Gumstick Battery: I bought it for my Minidisk recorder that uses a NH-14WM. It doesn"t hold a charge for more than 15 minutes. You get what you pay for.
2) No Bargain: I Ordered one of these some time back. Was able to charge it once. Now it will not recharge. Just be warned.
3) great service!: this was 6.99 versus 34.99 for the sony brand....seems to work the same? wonder why there is such a big price difference! great service - received the battery one day after ordering it!
4) Excellent: I"ve now used this battery for a couple of years and countless charge/discharge cycles. Still plays my ancient Sony network walkman for several hours. Good deal!

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