I'm not sure I've connected my iTECHBM500 correctlyUpdated 3 months ago

Please follow the below steps for the correct installation of your battery monitor:

1. Charge your battery (or batteries) to 100% before installing your iTECHBM500 with shunt. If your batteries are lithium-chemistry, the voltage must rest at or above 13.5V to be considered 100% full.

2. Connect the 8-metre shielded wire to the shunt and the LCD interface. The shunt cannot be connected directly to the LCD interface; you must use the wire. 

3. Insert the red 1-metre 20AWG cable into the shunt's B+ housing. Secure the cable in place using a small flathead screwdriver. Connect the eyelet to the positive battery terminal.

4. Run a negative cable from B- on the shunt to the negative battery terminal. We do not supply this cable. Ensure you use a cable that can handle the maximum load/charge for the system. For example, if your largest load/charger is a 3000W inverter using 0AWG cable, the cable from B- to the battery has to be 0AWG. 

5. P- on the shunt now becomes your negative battery terminal. Any negative cable that charges/discharges the battery must be connected to P-. If a negative cable from a device that charges or discharges the battery is connected to the battery rather than P-, there will be inconsistent readings on the LCD interface.