METER PROBLEMS: the two programmable “charging parameters” in the meter must be correctly set. What can go wrong falls in two large categories:ġ.
#TRIMETRIC BATTERY MONITOR INSTALLATION FULL#
The only requirement for useful % full data is that regularly used batteries are being “pretty well charged” every 5 days or so–which is also necessary to maintaining your batteries’ capacity. When you are discharging your batteries regularly is when this function is really useful. If you batteries are in a period of not being used, but mostly sitting being kept at standby at their “float” voltage by solar or a line charger the batteries will typically be kept pretty fully charged by the charger. Once wiring and setpoint problems are eliminated, as mentioned above, the real usefulness of this data is when the batteries are being somewhat discharged, then recharged again. It may indicate a problem that also affects your battery life, or the meter could sometimes be showing the wrong “amps” data. If the Percent full display is NOT working properly, you should be concerned. During a period when your batteries are hardly being used it’s not as useful, as you typically know that the batteries are staying pretty full.Ģ. This display is mainly useful when your batteries are being discharged, and then recharged frequently, such as would be the case when relying mainly on solar power when living in a home, or when using solar power while “boondocking” in an RV. But if it is not working right that could indicate some problems with the way your system is connected. Two important things to know about the Percent Full display: Once the correct settings are entered, and the meter and all loads and charging sources are connected correctly in your system the Percent Full display on the TriMetric (or PentaMetric) is quite easy to use and pretty accurate.
If your only problem is that the display shows three dashes, see TriMetric Frequently Answered Questions, Q4.īefore troubleshooting the “Percent full” display, please read FAQ above, Q1. My TriMetric (or PentaMetric) works mostly OK except the values for Battery Percent Full seem wrong. At the top of this page go to “support-manuals.” Q2. This can be downloaded from the web site. In a system being constantly charged and discharged this is usually much more accurate way to measure “state of charge” than what just the voltage can tell you.Ī more complete description is shown in the TM-2030 or TM-2025 “Users Intructions” (or “Manuals”). As you use your system it continues to go up and down until it again senses that they are “full” (described in step 1) which should be when the value is pretty close to “100%”–and then again resets the number to exactly 100% to start the process again. The reason for the discount is that to be charged the batteries require a little more energy to be put in than was taken out before.Ĥ. When you are charging, as indicated by an “amps” number that is positive, then the percent number goes up, but it is discounted slightly by a “efficiency factor” which you can set, but defaults to 94% of the actual amount. After that, whenever you withdraw energy, as indicated by an “amps” number that is negative, the percentage goes down depending on your current draw from the battery, much the way the bank knows your bank balance by always subtracting your withdrawal amount when you take out money.ģ.
When the battery is measured to be “full” (because during battery charging, the battery volts are high enough, and at the same time the charging current is low enough) it then immediately says the batteries are “100% full.” To do this it uses the programmed volts and amps setpoint values (program P1,P2,P3 values in the TM-2030.)Ģ. It requires the following process to determine this:ġ. Here’s a brief description: When you first connect the meter to the battery system it has no way of knowing how full the battery is.
How does the TriMetric (or PentaMetric) determine Battery Percent full ? TriMetric Frequently Answered Questions Q1.
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