12v. car batteries ... resting voltage ? When to replace
Jan 12, 2006 · What should the resting voltage of a 12v. car battery be , 2 hours after driving the car 8 miles ? I think when bought new , the voltage is 12.70 volts. What resting voltage would be a hint the …
What CR2032 open circuit voltage is considered "dead"
Apr 15, 2001 · I just measured the open circuit voltage of a spent cell and it's reading 3.01 volts. Is this considered "dead"? Being a 3V cell, I would think that is still an acceptable voltage so I'm wondering …
how to tell if a 12 volt lead acid battery is toast
Oct 27, 2007 · I have several car and mower batteries (12 volt lead acid) that appear to charge completely but are unreliable, often dead. What is the symptoms of a bad lead acid battery?
Use voltage to determine remaining charge in a used AA alkaline?
Jul 13, 2015 · I didn't think of measuring the resistors in my battery tester when I took it apart to mod it to take 18650s. It has 3 levels you can use if you knew the right resistors to test various battery types …
What voltage is it safe to run a li-ion down to before needing to ...
Jun 25, 2004 · I use this chart and depending on how much I use of my flashlight I play it by ear and when I get a chance I check the voltage. I dont let my batterries go lower than 3.8V. Also some drop …
is a li-po 4s 14.8v, the CHEAPEST WAY to jump start a car (with dead ...
Aug 16, 2014 · A fully charged lead acid car battery rests at 12.8v or so, not the 14.4 to 14.7 as you state. A few AGMS will be 13v. My Northstar is 13.06v. 14.4 to 14.7 is the absorption charge voltage …
What does a HID ballast do? | Candle Power Flashlight Forum
Jul 11, 2003 · A capacitor in series with the AC output limits the current. The purpose of such DC-AC inverter-type ballasts is to take a low voltage DC source (such as your car's electrical system, a few …
LiFePO4-Battery-Voltage-Charts-Image-11.jpg
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Car voltage fluctuation advice | Candle Power Flashlight Forum
May 27, 2011 · The voltage will fluctuate depending on a number of things, eg. The alternator is charging/not charging the battery, whether or not the aircon is running. If your light is designed to run …
What is the fully charged voltage of NiMh batteri?
Dec 1, 2004 · Can anybody tell me what the IMMEDIATE fully charged to capacity voltage of a NiMh battery should be? I mean either hot from the charger, or after no more than one hour after full …