Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 23-09-2018, 10:36   #1
Registered User

Join Date: May 2017
Posts: 8
Amp Hour calculator

Hi Guys,

After a bit of learning curve and such I have been using a calculator that I threw together in excel. It calculates the current draw of appliances from 240v wattage and calculates how long (theoretically) you should be able to run said appliance on 12v through an inverter.

It’s just rough maths and I am sure it’s a repeat of a calculator that you can find online. However if you find it useful you are more than welcome to save it, after all I have taken much more from this forum than I have given!

The inputs are simple, put your wattage of appliance at 240v, your amp hours of a single battery, the amount of batteries you have in the bank and it will give you an output of how long you can run that appliance (to 50% SOC).

I found it useful when trying to spec how many batteries I was buying after a cell went dead on my boat recently and took down a number of batteries with it.
Attached Files
File Type: xls Amp Calculator.xls (40.0 KB, 96 views)
geoisbest is offline   Reply With Quote
Reply

Tags
Amp hours, cal, Calculator, how much wattage at 240v, inverter, Wattage

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Amp Hour Load Calculator - Did I Miss Anything? GeoPowers Electrical: Batteries, Generators & Solar 30 27-03-2020 20:54
For Sale: Tamaya Sextant Model MS-933 & Tamaya Calculator NC - 2 NC-2 clairenicoleart General Classifieds (no boats) 13 08-04-2017 19:18
Currents: Scroll Through Hour-by-Hour Chart View prjacobs OpenCPN 8 27-08-2010 11:16
Electrical Calculator GordMay Electrical: Batteries, Generators & Solar 0 17-04-2007 02:02
Wire size calculator Alan Wheeler Electrical: Batteries, Generators & Solar 0 21-09-2004 13:42

Advertise Here


All times are GMT -7. The time now is 23:30.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.