Battery box (for 9 Volt battery) for Yamaha guitar:
| APX-4-12A |
| APX-4A |
| APX-500 (not suitable for APX-500II and APX500III) |
| APX-6A |
| APX-6NA |
| APX-6SA |
| APX-700 |
| CPX-10 |
| CPX-7 |
| FG-411CE |
| FGX-412 |
| FGX-412C |
| FGX-412CBL |
| FGX-413SC |
| FGX-423SC |
| FGX-720SC |
| FGX-720SCA |
| LW-5C |
| NCX-2000R |