AGM Battery Voltage Upgrade
When you upgrade to an AGM Deep Cycle battery to get extra discharge and charging capacity, your modern Toyota charging system is not up for the task in its stock form. Toyota Alternators are known for charging batteries around 13.2 volts when warmed up and most AGM batteries need to see a voltage higher than 13.5-13.7volts to charge properly. We have an easy fix for you, so stop reading about 30$-50$ even $80 fixes on line and in the forums and just do this! :-)
After installation you will see your charge voltage peak around 14.7v on cold start and settle back around 13.7 to 14.2. This is just enough to keep those expensive AGM Batteries all charged up and ready to rock for your next adventure.
Disclosure: This modification is not needed on all trucks. Please test your voltage before you assume that you need to do anything. Chitown4x4 will not perform this modification on your truck. You can do this at your own risk. We are not liable for your truck or charging system if something happens because you performed this modification on your truck. Having too much voltage can harm components in your truck.
After installation you will see your charge voltage peak around 14.7v on cold start and settle back around 13.7 to 14.2. This is just enough to keep those expensive AGM Batteries all charged up and ready to rock for your next adventure.
Disclosure: This modification is not needed on all trucks. Please test your voltage before you assume that you need to do anything. Chitown4x4 will not perform this modification on your truck. You can do this at your own risk. We are not liable for your truck or charging system if something happens because you performed this modification on your truck. Having too much voltage can harm components in your truck.
|
This is the GM Part #. it should cost around $5.
< this is where it goes. and Make sure the Arrow on top of the Diode is oriented in the direction shown in this picture. If not, you might get dash lights and worse charging, not better. This slot is the Alt-S fuse location that is a 7.5 amp fuse from stock.
|
^^^ This is what the part looks like. You need to use a razor blade and trim the sides down so it fits in your fuse box. Don't bend the legs and be careful. Sharp fresh blades help.
|
