Tractor
The Massey Ferguson 135 tractor originally used a 12V 6.5Ah lead-acid battery. These batteries are still available through various online retailers and specialty tractor parts stores. Other compatible models include the Delco Remy 1119513, NAPA 740-1835, Exide 312-12, Interstate SG6-12 and AY-12R. Additionally, some owners have chosen to upgrade their batteries to the 12V 7.25Ah battery, which offers a slightly higher capacity and longer life than the original model.