Renew the 18650 inside and glue together finished! 3120mAh is the new Capacity : r/minidisc
Walkman Battery 3.7V/2300mAh LIP-12, LIP-12H for Sony MZ-B3, MZ-E3, MZ-R2, MZ-R3, MZ-R30, MZ-R35, MZ-R4, MZ-R4ST
Repairing a LIP-12 battery (MZ-R30 and such) - Minidisc - Sony Insider Forums
Latest eBay find! I need to figure out a battery situation. I found some new replacement LIP-12 batteries. Does anyone know if you can use AA's with the MZ-R30? : r/minidisc
Walkman Battery 3.7V/2300mAh LIP-12, LIP-12H for Sony MZ-B3, MZ-E3, MZ-
SONY LIP-12 LIP-12H 互換電池 MZ-R3/MZ-R30/MZ-R35/MZ-R4ST(一般)|売買されたオークション情報、yahooの商品情報をアーカイブ公開 - オークファン(aucfan.com)
HSABAT LIP-12 LIP-12H 2000mAh Battery for HP Jornada 420 428 430 SE for SONY | eBay
BC-LIP12 特長 | モバイルバッテリー/電池 | ソニー
Repairing a LIP-12 battery (MZ-R30 and such) - Minidisc - Sony Insider Forums
Handheld Computer Battery Replacement for HP F1255-80055, F1255A, F1287A - 2200mAh, 3.6V | 106261035