This means you can monitor your car battery each and every time you desire as the screen constantly displays the battery level. First and foremost, this monitor shows instantly the condition your battery is in. Unlike other battery monitors, the Equus 3721 performs more functions than just your regular monitor. One of the leading innovators in this field has been Equus who have come up with the Equus Battery and Charging System Monitor. With the improvement in technology, countless gadgets have been developed that can help car owners monitor battery levels of their cars and also determine whether the batteries were effectively being charged. Gone are the days when one could not accurately determine the level of the car battery and would just be surprised when the car failed to start as a result of the weak or dead battery.
#EQUUS INNOVA 3721 BATTERY AND CHARGING SYSTEM MONITOR FULL#
I reccomend you make an alteration to the tester so you can plug it in the ligher socket and monitor the system full time as you check the start and run operating conditions and see when the problem is showing and relate to how it acts.Ī charging system is a dynamicly changing set of conditions and needs to be interpeted in the same manner in order to detect improper or degraded operation.Equus 3721 Battery & Charging System Monitor Review These items will answer 99% of all the trouble shooting and suggest what needs to be addressed.Īgain it's all in interpetation of the lamp actions under all the basic conditions that occurr in normal operation.
Next, is the charge circuit working when the motor is running? Refer to above under run after start condition. Then have a battery load test done after manuel recharge, to be sure of the battery capacity if the battery has quite a bit of age. Use this type indicator to get a look at these operating conditions, recognize what does not look good and go to the points that affect that operation.Ī bad battery, low state of charge, poor cable connections will make the Led go to 11 volts upon starting attempt and cause poor or slow motor turn-over.Īlway do the easy work first, as you need to do this as part of good service anytime. Going beyond this point is a lot of detail you need not know unless you want to go to great lengths to fully learn the whats and whys of the whole subject. (((if the battery is good))), and alternator is working.Īnything much different than these indications suggests aging and if bad enough a fault with cable connections, alternator and or regulator. Starting: lamps go out leaving 11 or 12 volts lamp lighted when heavey currents are drawn, discharging the battery.Įngine running right after starting: Leds all light up to the top at 15+volts indicating the alternator circuit is functional.Įngine running for 5 or more minutes after starting = lamps go out from the hi voltage end downward indicating the battery has/ is recharging and it's voltage is coming up to 'float' running level of about 14 'running' volts. Normal motor off, battery charged = 11 and 12.6 volt lamps lighted.
The lamps are labeled with the voltages they will light on and when. The trick to using this tester is "UNDER VARIOUS OPERATING CONDITIONS" because an indicating lamp by it'self cannot talk to you for different conditions. It has 5 led indicator lamps telling you what the status of the system is "under various operating conditions". Get an LED tester 'stick' from Radio Shack or Habor Freight at less than $10. Here is a tip for everyone that has charging issues.
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