Battery Monitors

Battery Monitors


Wondering if your RV or camper’s house batteries are charged sufficiently?  Or, if the batteries will power your CPAP all  night?  Want to measure your RV energy usage before you decide to buy new batteries?  Planning an extended dry camping (boondocking) experience and want to know if the batteries can handle it? Looking for a way to keep an eye on your off-grid cabin’s solar batteries or your boat’s marine batteries? Looking for a smartphone remote capable battery monitor?

The Trimetric TM-2030 Battery-Monitor is the answer!

Long considered the golden standard against which all battery monitors are compared, the Trimetric battery monitor provides a high degree of insight into your battery system.  As a fuel gauge, the Trimetric monitor works with all battery types (AGM, flooded cell lead acid, lithium LFP, nickel iron) and will accurately track and help you plan your energy usage.  The Trimetric monitor and its companion products,  SC-2030 Solar Charger and WF-2030 WiFi Module, let you effortlessly manage your RV’s batteries and free you to enjoy the great outdoors.

Visit our on-line store to purchase any of our products and take advantage of our current promotions.

If you’re here on your research for RV battery monitoring and solar options, please contact us.  We’ll offer you objective, unbiased suggestions & tips in designing a reliable & high performance battery monitoring & solar system. We’ve even recommended products from our competition if we felt they were better for a specific situation.

You’ll never be in the the dark with the Trimetric
TM-2030-RV Battery Monitor
TM-2030-RV Battery Monitor

●Battery Shunt based Monitor.  More accurate, stable & reliable than Hall effect based monitors.

●Measures battery % full, based on amp hour measurements for accurate information on state of charge (SOC). This method is more accurate than meters that use only voltage to determine how full your batteries are—especially when they are between 30-90% full. Battery system size: 10-10,000 amp hours.

●Use the TM-2030 with the WF-2030 WiFi module for remote access from smartphones, tablets and PCs. WIFi offers better range than Bluetooth.

●Allows Amp-hrs based battery charging when used with the SC-2030 Solar charger to prevent or minimize sulfation.

● Measures battery charging or discharging amps (or watts); Verify chargers are working properly, view loads and how much current they are drawing, and check for phantom loads you may not have been aware of.

● Measures battery volts (9.0 to 75): to verify that chargers are charging to correct voltage for your batteries.

● Audible low battery alarm, based on volts and % full. May be silenced.  Avoid inverter shutdowns by properly charging the batteries.

● Measures days since charged:  Shows how many days have elapsed since batteries were last fully charged. Batteries can lose their ability to hold a charge if they are not fully charged on a regular basis.

● Shows days since equalized: A reminder to equalize at appropriate time if you perform manual equalization.

● Displays replaced percentage of charge, compared to most recent discharge–Many battery company experts are now recommending that when recharging, 110-120% of recently withdrawn energy should be replaced for wet cell lead acid batteries to prevent loss of capacity—and 104-108% for AGM types. This function makes it easy to determine if the batteries have been sufficiently charged.

● Incorporates lightning protection.

● Easy to read display.  If needed, display may be turned off.

● View logged history data: Helpful to verify your system is working properly.

Serial data port for connection to computers.

Data for each of the last five charge/discharge cycles:

● Length of the cycle.

TM-2030-A Battery Monitor
TM-2030-A Battery Monitor

● How long ago the cycle ended.

● Lowest % full reading

● Lowest battery voltage.

● Cycle charge efficiency (percent)

Data for each of the last five days.

● Highest voltage that day.

● Lowest charging current.

● Total percentage overcharge for that day.

● Sizes: smaller (RV) is 3 x 5-1/4 x 1-3/8 inches deep. Larger (A) is 4-1/2 x 4 -3/4 x 1-1/4 inches deep.

● Requires a  shunt:  Either a 500A/50mV shunt that allows current measurements from 0.1-400 Amps. Or, a 100A/100mV shunt that allows current measurements from 0.01- 75 Amps. Larger shunts allow higher current limits.  1000A/100mV shunt (rarely used) may be used (with the “H” shunt setting).

To purchase the TM-2030 or the SC-2030 directly from us visit our online store please contact us.



Trimetric Monitors & Chargers in the wild:

Made in the U.S.A.