I'm installing an off-board battery harness in one of my machines. The pinrepair.com website says to use three AA batteries preferably with a 1N5817 blocking diode in circuit to cut the batteries off before they completely die and begin to leak. I only have a few 1N4730 diodes on hand and wanted to know if these would be an acceptable substitute for 1N5817. My knowledge of diodes is limited so I'm not really sure what to look for here.