Carmanah Technologies Corp. | 250 Bay St, Victoria, BC V9A 3K5, Canada | 1.250.380.0052 | customerservice@carmanah.com | carmanahtraffic.com 68E SERIES USER MANUAL7.0 MAINTENANCE AND PRODUCT CARE7.2 Battery ReplacementWhen the E Series system’s batteries require replacement, it is recommended that the same model andmanufacturer of the original E Series battery be used. You should replace both batteries at the same time.As part of the E Series’ battery interactions, the general health of the battery is tracked in a form of “odometer.” Ifbattery status is reported as “Bad”, it is this function that has determined the battery health is too poor to bereliable and batteries should be replaced. Battery health is evaluated by considering such things as the totalnumber of charge and discharge cycles, and the amount of time spent in a low state of charge. When placingnew, fully-charged batteries in the E Series, observe the following procedure to reset the health odometer:1. Begin with the new batteries disconnected2. Press and hold down the “Set” button3. While continuing to hold down the “Set” button, connect one of the new batteries4. While continuing to hold down “Set” button, wait for the word "Zero" to appear and then disappear fromthe display5. After you've seen "Zero", you can release the “Set” buttonThe battery health meter inside the E Series is now reset (i.e. it knows that new, healthy batteries have beeninstalled). The battery status should read “Good” if the new batteries are 12.6V or higher, or “Char” (Charge) if itis under between 11.7 and 12.6 volts.Battery replacement procedure should not be carried out in windy conditions. In all cases, thearea at the base of the post must be roped off to prevent people from being injured or killed byfalling batteries.7.3 EMS ReplacementCaution - The solar panel may still be producing energy if it is exposed to light. Cover the solarpanel or ensure it is not exposed to sunlight to prevent risk of injury.Sensitive electronics can be damaged by electrostatic discharge. Observe proper ESDprecautions when installing the new EMS.1. Open the solar panel.2. Disconnect the battery fuses.3. Remove the 4 screws securing the metal housing containing the EMS PCB (Energy Management SystemPrinted Circuit Board). Carefully remove the radio antenna if present.4. Turn the metal housing over to reveal the circuit board and review the wire positions on the existing EMS.Photograph the existing wire terminations if convenient.5. Remove the wires from all terminal block connectors by pressing the wire release button with a smallscrewdriver or other suitable small tool to pull the wires out of the connectors.6. Secure the solar panel wires with insulation tape. The solar panel wires may still have voltage on themthat could damage the electronics if they contact the circuit board.7. Remove the 4 screws securing the old EMS to the metal housing and set the old EMS aside.8. Remove the new EMS from its antistatic bag and secure it to the metal housing with the 4 screwspreviously removed.