1. A series is complete type with wheel. 2. With 6 sqmm or 10 sqmm wire. Bigger size is optional 3. With switch and terminal. Bigger size is optional 4. With aeration window 5. Accept the battery cabinet order for 100AH- 200AH/12VDC 6. Standard Battery cabinet for the 17AH- 100AH/12VDC 7. C series is assembled type, no wheel. The wheel is optional.