spacer spacer spacer spacer

Diode Battery Isolater

Post ReplyPost New Topic
< Prev Topic Next Topic >
Member - Posts: 9
Member spacespace
Joined: January 16, 2015
Location: Arizona, United States
Posted: February 18, 2017 at 5:10 PM / IP Logged Link to Post Post Reply Quote filth
If I wanted to keep reach full charge capabilities for each battery (3, all different wattages) would I need to have a diode isolater for each?
Gold - Posts: 643
Gold spacespace
Joined: May 27, 2011
Location: California, United States
Posted: February 25, 2017 at 4:25 PM / IP Logged Link to Post Post Reply Quote davep.
Battery Isolators are usually one or two inputs (alternators) and 2-4 outputs (battery banks). The model number usually indicates the maximum amperage of the alternator input. I.e. a "702" is a 70-amp, 2 bank. A "1203" is a 120-amp, 3 bank isolator. They make bigger capacity, but usually only 2 bank. There are also "specialty" isolators for use with certain alternators' excitation and regulator requirements. Basically, select an isolator that has higher capacity than your alternator's maximum output, and 3 bank outputs.
You must pay attention to alternator "sensing" to avoid voltage drop across the isolator that will result in chronic under-charging.
You must also pay attention to having large differences in battery capacity, particularly if the large bank is usually the one needing the most charging. The smaller batteries may be overcharged while the big bank is nearing "sense" voltage.
There is a lot to understand about using diode battery isolators to get optimum performance and battery life. Do your research.

If you wish to post a reply to this topic, you must first login.
If you are not already registered, you must first register.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Follow Follow on Facebook
Sunday, June 23, 2024 • Copyright © 1999-2024, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo spacer spacer spacer
Top spacer spacer