Comments on: What is an Amp Hour and How to Calculate Battery Capacity http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity Overland expedition travel info. Fri, 13 Jan 2012 08:10:38 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Mitha http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-553 Mitha Wed, 24 Aug 2011 12:57:35 +0000 http://overlandresource.com/?p=208#comment-553 My technician bought for me : 4X150 watts panel Inverter 3000 watts 48 volt 4 batteries each 200/10 One regulator I wonder what he did is right. My regulator shows 53.5 v most of the time , sometime below that when power is cut. What capacity is this? thanks My technician bought for me :
4X150 watts panel
Inverter 3000 watts 48 volt
4 batteries each 200/10
One regulator
I wonder what he did is right. My regulator shows 53.5 v most of the time , sometime below that when power is cut. What capacity is this?
thanks

]]> By: Ellmer http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-551 Ellmer Sat, 20 Aug 2011 15:17:27 +0000 http://overlandresource.com/?p=208#comment-551 Hi I have a trike made up of a robin reliant, i have put quite a lot of lights on it, that i might add they are not all on at the same time, but if i do use some aswell as the head lights the engine drops a lttle power. Now the battery has gone right flat as i havent been on it fore some weeks, i have had a look in the reliant book and the have 2 sorts of battery one is 12v 22amp hrs and the other is 12v30amp hrs. i dont understand could you please let me know what i should buy as the one on the trike now is gone flat and i dont know how long it has been like it so just as well buy a new one. Please help as i dont want to go for a long ride and find that the battery goes flat on me. Thanks Ellmer Hi
I have a trike made up of a robin reliant, i have put quite a lot of lights on it, that i might add they are not all on at the same time, but if i do use some aswell as the head lights the engine drops a lttle power. Now the battery has gone right flat as i havent been on it fore some weeks, i have had a look in the reliant book and the have 2 sorts of battery one is 12v 22amp hrs and the other is
12v30amp hrs. i dont understand could you please let me know what i should buy as the one on the trike now is gone flat and i dont know how long it has been like it so just as well buy a new one. Please help as i dont want to go for a long ride and find that the battery goes flat on me.

Thanks Ellmer

]]> By: Sandeep Malik http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-549 Sandeep Malik Wed, 17 Aug 2011 05:27:41 +0000 http://overlandresource.com/?p=208#comment-549 Which is a better 12 Volt battery to be used for a heavy vehicle application:- 120 Ah @ 5 hr rating or 140 AH @ 20 hour rating? How does one compare the two? Which is a better 12 Volt battery to be used for a heavy vehicle application:-
120 Ah @ 5 hr rating
or
140 AH @ 20 hour rating?
How does one compare the two?

]]> By: Pro http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-547 Pro Mon, 08 Aug 2011 13:42:35 +0000 http://overlandresource.com/?p=208#comment-547 u need at least 125AmpHour for one motor u need at least 125AmpHour for one motor

]]> By: Steven http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-544 Steven Fri, 05 Aug 2011 03:26:43 +0000 http://overlandresource.com/?p=208#comment-544 Here is my guess at your question: You want 800 amps for 6 hours, that comes to 4800 amps. Using the 60% rule state above I figure it would come to 8000 AH of capacity needed (4800/.6) Here is my guess at your question:

You want 800 amps for 6 hours, that comes to 4800 amps. Using the 60% rule state above I figure it would come to 8000 AH of capacity needed (4800/.6)

]]> By: Steven http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-543 Steven Fri, 05 Aug 2011 03:20:02 +0000 http://overlandresource.com/?p=208#comment-543 Here is a battery that I am considering purchasing but it does not appear to have the info needed to calculate the AH rating. Am I missing something? PLEASE reply to my email as well!!!!!!!!!!!! Battery Usage Deep cycle Cranking Amps at 0 Degrees F 450 amps Cranking Amps at 32 Degrees F 575 amps Reserve Capacity 66 minutes Volts 12 V Here is a battery that I am considering purchasing but it does not appear to have the info needed to calculate the AH rating. Am I missing something?

PLEASE reply to my email as well!!!!!!!!!!!!

Battery Usage
Deep cycle
Cranking Amps at 0 Degrees F
450 amps
Cranking Amps at 32 Degrees F
575 amps

Reserve Capacity
66 minutes
Volts
12 V

]]> By: trinath http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-542 trinath Fri, 29 Jul 2011 06:50:20 +0000 http://overlandresource.com/?p=208#comment-542 UPS rated KVA: 0.5 minimum VAH : 168 what is back up time ? Please reply via my e-mail UPS rated KVA: 0.5
minimum VAH : 168

what is back up time ?
Please reply via my e-mail

]]> By: trinath http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-541 trinath Fri, 29 Jul 2011 06:49:02 +0000 http://overlandresource.com/?p=208#comment-541 i use a ups with rated KVA : 0.5 minimum VAH : 84 AVR for single phase AC 160 V to 280 V input WHAT is the backup time ? Please reply soon i use a ups with rated KVA : 0.5
minimum VAH : 84
AVR for single phase AC
160 V to 280 V input

WHAT is the backup time ?
Please reply soon

]]> By: MMcGinty http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-529 MMcGinty Wed, 01 Jun 2011 19:56:13 +0000 http://overlandresource.com/?p=208#comment-529 It depends on your definition of "dead". In practice, assuming we're talking about deep-cycle batteries, as the charge is depleted the voltage drops, but it still delivers whatever amps the load is drawing. The point at which it can no longer do that is what I consider "dead". It may still show 9-10 volts under no load, but for a 12 volt battery that's dead as a doornail. That said, bear in mind that I never test adequately-working batteries to the bitter end (on purpose, anyway.) It depends on your definition of “dead”.

In practice, assuming we’re talking about deep-cycle batteries, as the charge is depleted the voltage drops, but it still delivers whatever amps the load is drawing. The point at which it can no longer do that is what I consider “dead”. It may still show 9-10 volts under no load, but for a 12 volt battery that’s dead as a doornail.

That said, bear in mind that I never test adequately-working batteries to the bitter end (on purpose, anyway.)

]]> By: Nick http://overlandresource.com/what-is-an-amp-hour-and-how-to-calculate-battery-capacity/comment-page-1#comment-523 Nick Thu, 05 May 2011 11:21:46 +0000 http://overlandresource.com/?p=208#comment-523 Well i never got a reply and its been several years, lets say the project never went off the planning stage but i did get answers to my question elsewhere. Mr. Mei Cruz if you need help go to www.benson-search.com and go to contact us and send me an email. glad to help Well i never got a reply and its been several years, lets say the project never went off the planning stage but i did get answers to my question elsewhere. Mr. Mei Cruz if you need help go to http://www.benson-search.com and go to contact us and send me an email. glad to help

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