With all the decisions necessary in installing a solar powered system, the last thing that may come to mind is a monitoring device. But once you begin collecting, storing, and using solar to power your life, you’ll want to keep tabs on how your new system is working. This information can be helpful in learning what your system can do.
Both the Renogy Battery Monitor and Bluetooth Module are helpful additions to
any Renogy solar system, eliminating the guesswork out of monitoring your system. There are some key feature differences between these two products, which we’ve outlined below in order to help you decide which is best for your system, your rig, and your lifestyle.
We recently upgraded to all Renogy components for our solar powered system. Before
2019, we had a very simple battery monitor which only displayed the voltage of
our battery, from which we extrapolated its status. We lived with this for about 6 years before installing the Renogy 30A Wanderer Charge Controller with Bluetooth BT-1 module. During that time, we really didn’t know what we were missing. This upgrade has made a HUGE difference in our ability to find the best angle/placement of our
solar suitcase as well as monitor the performance of our battery, and what we can run with our new components, especially during the winter months of lower solar gain.
Two Options for Monitoring Your System
Renogy 500A Battery Monitor
Compatible with any type of battery, this unit connects to a shunt linked between the battery, charge controller, and an inverter. After correct calibration, it effectively monitors the amperage flowing out of the battery bank as well as the battery charge status — displaying that information on a LCD screen. It will also indicate, based upon the load, the time to charge or time to discharge. This unit measures 3.9 x 2.4 x 0.7 inches.
Renogy BT-1 Bluetooth Module
This module also works with any
type of batteries but is only compatible with select Renogy charge controllers. Via a
downloadable app, and quick set up, you can use your smartphone or tablet to monitor the wattage
coming from your panel(s) and battery charge status, without getting up from
your hammock. And, if you have a
Wanderer 10A (PWM) orRover Charge Controller (MPPT) you can also monitor the load on your system via the app. The signal range is about 50 feet between
your portable device and the BT module, and the unit measures 2.6 X 2 X 0.61 inches.
Best
Applications
The Battery Monitor is a good idea for anyone without a smartphone, or who
doesn’t mind needing to stay close to their system in order to keep tabs. Additionally this monitor will work with any
battery type and nearly any solar components regardless of make or
manufacture. If you have a collection of
components or are upgrading only a few, this might be your best option. This monitor can also work with all sorts of
other battery applications, such as golf carts, electric scooters, medical
devices, etc.
The Bluetooth Module caters to anyone with a smartphone
or tablet, and those who want a bit more freedom in how they keep tabs on their
system. It is also compatible with any battery type. Within a range of around 50 feet, you can see
your system’s performance. In addition, the BT-1 allows users to see historical
performance data, as well as alter charge controller settings (on
Rover Charge Controllers only).
Ease of
Installation
The Battery Monitor is slightly more complicated to install because it uses a shunt
(included) which needs to be connected to the negative terminals between the
charge controller, battery bank, and inverter.
The LCD screen is connected via an insulated wire, giving you some
freedom to install the monitor in an easy to see location, rather than just
keeping it in your battery compartment.
If installing on a wall or in a cabinet within your RV, you will need to
be able to fish the wire through to your battery or electronics
compartment.
The Bluetooth Module is very simple to install. Just secure the unit near the charge
controller, then connect it using the telephone jack outlet on the
controller. There is no LCD screen on
the unit itself, as it sends information about your entire solar powered system
to your smartphone or tablet via the free downloadable app. There is no need to fish wires through a wall
or cabinet, just open up the app, enter the provided password, and start
monitoring.
Limitations
The Battery Monitor only monitors the battery
status; it is not intended to keep up with stats for the other components
within your solar powered system.
Because of the wired connection, if the included line is not long enough
to reach your ideal install location, you will need to splice on additional
line.
Since the Bluetooth Module is not
weatherproof, it is not currently compatible with solar suitcases with
built-in charge controllers.
Also, the current app will not let you change the temperature settings
from Celsius to Farenheit. Finally, the
load monitoring function of the BT-1 app will only work if your charge
controller has a load terminal (which is currently available on select charge
controllers listed above). Thus, you may consider
how much of your system you want to monitor before choosing a charge controller. Contact Renogy Tech Support for more
information, as their line of charge controllers is always being updated and
upgraded.
Cost
At more than twice the price, the Battery
Monitor ($99.99) is more expensive than the Bluetooth Module ($39.99) and downloadable app (free) for keeping tabs on your solar equipment.
We’ve truly enjoyed the ease and simplicity of
the Bluetooth Module and free downloadable app, giving us just enough information to keep tabs on
our system; but, more technically-minded people may lean toward using the
Battery Monitor for sake of charge specificity and programmability. Your rig, system, and lifestyle, will likely
lead your to one or the other these monitoring methods, but neither will let
you down.
If we’ve inspired you to go solar with Renogy, please use our affiliate link and promo code “canlife.” You will get a 10% discount and we will get credit for the sale. It’s win-win! And, as always, contact us directly with any questions. We love to hear from our readers!
Shari Galiardi & David Hutchison have turned their higher education backgrounds, desire for life-long learning, and thirst for adventure travel into writing, photography, video production, and public speaking tours from coast to coast. Known to their friends as simply Shari & Hutch, you can learn more about their full-time, solar powered adventures on their website at freedominacan.com. Or, follow them on Facebook, Instagram, and YouTube as “Freedom in a Can.”
