HQRP Battery for Sony NC-5WM NC-6WM D-E900 D-EJ1000 887774050970 | eBay
HQRP 2-Pack Battery for Sony NC-5WM, NC-6WM, WM-701C, 1-528-231-11, WM-RX707, WM-F100, WM-FX675 - Walmart.com
Amazon.com: HQRP 2-Pack Gumstick Battery Compatible with Sony NC-5WM, NC-6WM, WM-701C, 1-528-231-11, WM-RX707, WM-F100, WM-FX675 : Electronics
Hsabat Usb Tycp-c 3.1 900mah Battery For Sony Nh-10wm Nh-14wm Nc-6wm For Panasonic Hhf-az01/rp-bp80/rp-bp61 For Sharp Ad-n55bt - Rechargeable Batteries - AliExpress
Replacement Walkman Battery for SONY Nc-5wm Nc-6wm NH-9WM NH-10WM NH-14WM
SONY NI-MH Gumstick battery Charger for NH-9WM NC-6WM WALKMAN Cassette Player | eBay
Was lucky enough to stumble upon an OEM NC-6WM rechargeable battery for some Walkmans I have coming in. : r/cassetteculture
SONY BC-7AU Charger for NC-5WM NC-6WM Gumstick Batteries | eBay
Kastar Gumstick Battery for Sony D-E999, WM-EX900 MZ-NF810 MZ-NF810CK CD/MD/MP3 | eBay
HSABAT 900mAh USB TYCP C 3.1 Battery for Sony NH 10WM NH 14WM NC 6WM for Panasonic HHF AZ01/RP BP80/RP BP61 For SHARP AD N55BT| | - AliExpress
SONY BC-7AU Charger for NC-5WM NC-6WM Gumstick Batteries | eBay
Kastar 2-Pack Battery for Sony Portable CD MP3 NC-5WM NC-6WM NH-14WM NH-14WM(A) 884667525898 | eBay
600mah Usb Tycp-c 3.1 Battery For Sony Nh-10wm Nh-14wm Nc-6wm For Panasonic Hhf-az01/rp-bp80/rp-bp61 For Sharp Ad-n55bt - Rechargeable Batteries - AliExpress
Original SONY Gumstick Battery & Charger For Cassette CD Player | Reverb
Ilc Replacement for Sony Nc-6wm NC-6WM SONY | Zoro
Sony Walkman & GumStick NiCad Batteries | Stereo2Go forums
4x 1200 mAh HQRP Batteries for SONY Series CD MD MP3 / NC-5WM, NC-6WM, NH-14WM | eBay
Battery Compatible For Sony Nc-6wm - Rechargeable Batteries - AliExpress