Comments on: Battery Calculations – Battery Life Span – Current Draw & Amp Hour Rating

By: Elango

Elango — Mon, 30 Jan 2012 08:44:20 +0000

We are planning to install a low voltage (approximately 0 to 5-10v) battery tester/cycler with a minimum of 8 channels to test and determine the charge/discharge characteristics on Li-ion, Li-polymer, Ni-cad, Ni-MH, Lead-acid, and ultra-capacitors. Specifically, we wish to test the maximum safe charge and discharge rates of button cell type samples of the above batteries.
We need to be able to remotely control and receive data from your device through our own proprietary software. The user should be able to program and control each channel independently to determine the charge & discharge curves and other characteristics on the above mentioned batteries. Temperature monitoring on each channel should also be included.
What are the maximum charge/discharge currents that our equipment can continuously handle?
what should be current range for (0-10)v Batteries that we use

Thank you.

By: martin

martin — Tue, 24 Jan 2012 16:03:17 +0000

What battery and inverter do I need to power a Roland AC-60 (60 WATT) acoustic amp for 4 hours?? (power consumption= 68 watts) I just use it for one guitar and one vocal.

thanks

Martin / http://www.youtube.com/parkbenchchannel

By: Uttam barfa

Uttam barfa — Tue, 17 Jan 2012 10:23:37 +0000

How i can calculate the AH of battery if this parameter is given min.VAH:3456

By: Udoka Ukeje

Udoka Ukeje — Fri, 16 Dec 2011 07:33:22 +0000

IAM DOING A DESIGN NOW ON HYBRID SYSTEM . I WANT TO KNOW BATTERY CAPACITY TO USE TO ACHIEVE 12HRS BACK UP TIME WITH 5KW LOAD.

By: amruth

amruth — Fri, 23 Sep 2011 08:54:00 +0000

21plates batterys in engines how much power it consumes , give the details with brief.

By: mamun

mamun — Mon, 19 Sep 2011 12:08:56 +0000

Dear Sir,
Please inform me if i use 4 pieces of 200 amps (Deep cycle)batteries in series and consumption of 1200 watt, how long i will get backup from it?
Sincerely,

Mamun

By: Sandeep Malik

Sandeep Malik — Wed, 17 Aug 2011 05:24:41 +0000

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: Helen

Helen — Mon, 08 Aug 2011 17:07:30 +0000

For a Seyvlor raft, can I substitute a 12v, 7 amp battery with a 12v, 15 amp battery? Bought two 12v about three years ago and never used them, not they won’t charge since they’ve sat around too long. Thank you.

By: Kier

Kier — Sun, 03 Apr 2011 21:41:43 +0000

Hi Gerrie, sorry, I don't do calculations for readers, read my battery guide and posts on inverters and battery calculations. By the end of that you should be pretty clued up on how to work things out for yourself.

By: Gerrie

Gerrie — Thu, 31 Mar 2011 16:28:31 +0000

If 0.27 amps is drawn from a 12v 80 a/h batt how many hours before batt is flat?