About this app

Leaf Spy Lite lets a Nissan Leaf owner view detailed information about their Leaf's battery by plugging in an inexpensive ELM-327 Bluetooth OBDII adapter into the standard OBDII port on the Leaf. ELM-327 Bluetooth adapters are available on eBay for around $10-$20 and one is required before Leaf Spy Lite can display information from your Leaf.

Due to a recent cost reduction (and feature reduction) many of the cheap ELM327 OBDII Bluetooth adapters from Asia no longer work with the Leaf and report themselves to be version 2.1. The only one currently recommended is the Bluetooth Konnwei KW902 which still supports all the needed ELM commands to communicate with the Leaf.


User generated guide: http://www.mynissanleaf.com/wiki/index.php?title=Leaf_Battery_Application


Information displayed by Leaf Spy Lite:

* Battery State of Health (SOC)
* Voltage of each of the 96 cell pairs (highlighted if shunt active)
* Minimum, average, maximum cell pair voltages
* Histogram of cell pair voltages
* Battery Temperature readings (4 sensors for 2011/12 models, 3 for 2013 models)
* Battery AHr rating (this will decease with age and is an indication of remaining capacity)
* VIN
* Odometer
* Number of Quick Charge connections
* Number of L1/L2 Charge connections
* EVSE Max available amps
* EVSE voltage


If you are thinking of purchasing a used Leaf this app can help you learn more about the battery's condition.


Leaf Spy Lite lacks the logging function of the full version "Leaf Spy". Depending on your phone screenshots can be used to save this information before you update to Leaf Spy. Leaf Spy Lite also lacks the Service menu features of the Leaf Spy Pro.


Although Leaf Spy Lite provides an easy and inexpensive way to learn more about your Leaf's battery it also serves as a way to verify if you have a working system before purchasing the full version of the app (Leaf Spy) which display much more information about your Leaf or the Leaf Spy Pro version that adds a number of service type functions.


Support Forum for Leaf Spy Lite is http://www.mynissanleaf.com/viewtopic.php?f=44&t=14284

For more information about ELM-327 adapters and phone/devices that others have found to work with the app visit the CANbus subforum on www.mynissanleaf.com website (Board index » Leaf Ownership » Accessories / Mods subforum Leaf CANBus). Direct Link: http://www.mynissanleaf.com/viewtopic.php?f=44&t=12785

New features

Supports Android 9

On newer versions of Android the first time LeafSpy Lite is run after install you will be asked to confirm three permissions.
* Storage access for saving log files
* GPS location to save location to log file if enabled.
* Read Phone status

Bug fix that caused app to crash if "BMS" was selected for the Model Year

Testing new "ELM Assist Mode" in Settings/Options.
Report back if this new option allows your ELM OBDII adapter to connect to your Leaf.

App Permissions

Allows an application to write to external storage.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows applications to discover and pair bluetooth devices.
Allows applications to connect to paired bluetooth devices.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows applications to change Wi-Fi connectivity state.
Allows applications to access information about Wi-Fi networks.
Allows an application to update device statistics.
Allows modification of the telephony state - power on, mmi, etc.
Allows applications to open network sockets.
Allows an app to access precise location.
Allows an app to access approximate location.
Allows applications to access information about networks.
Allows applications to change network connectivity state.
Allows access to the vibrator.
Allows an application to read from external storage.