![]() * Resetable energy usage meter (Wh resolution) * Battery AHr rating (this will decease with age and is an indication of remaining capacity)Īdditional information displayed by Leaf Spy: * Battery Temperature readings (4 sensors for 2011/12 models, models) * Minimum, average, maximum cell pair voltages * Voltage of each of the 96 cell pairs (highlighted if shunt active) ![]() Information displayed by Leaf Spy Lite & Leaf Spy: The built-in help file is available as a PDF by sending an email with subject "Android PDF Help" to ![]() The LELink is highly recommended and also works with the iOS version of LeafSpy Pro. Bluetooth 4.x LE has the advantage of not needing to be paired and lower power from both the Android device and the Leaf. The recommended one is the LELink available from Amazon. With the release of version 0.39.97 LeafSpy Pro now supports two Bluetooth 4.x LE approved adapters. But when removed do not seem to cause any lasting damage. These will basically short out your Leaf's CAN bus (or any CAN bus they are plugged into). The previously recommended Bluetooth Konnwei KW902 OBDII adapter is also no longer recommended as a batch of defective ones have made their way into the market. The cells in the replacement module must also be carefully balanced or the result will be significantly reduced range, improper range calculation and in extreme cases the vehicle entering limp (turtle) mode.The Leaf Spy Pro application allows anyone with a Nissan Leaf electric vehicle, Android device with Bluetooth and a supported ELM327 OBDII Bluetooth adapter the ability to monitor their battery and other vehicle information normally visible only to the dealer.ĭue 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. In such cases the replacement module must contain cells with a capacity that is as good or better than the rest of the cells in the battery pack. Replacing a module containing a failed or high-self-discharge cell has become one of the few reasons that we still have to open a Leaf battery pack these days. Sudden failure of the Leaf’s Li-ion cells is extremely rare on 24kWh models, but we have seen several failures of cells in 30kWh and 40kWh packs.Īdditionally, cell imbalance problems due to one (or occasionally several) cells with a manufacturing defect are not unheard of in the 30kWh, 40kWh and 62kWh battery packs. However, there are still cases where opening a battery pack is still required. We now have solutions to allow battery swaps and upgrades to be performed quickly and safely without opening either the new or old battery pack. The old battery pack often still has life and value for a stationary storage project. Of course, there are always some exceptions – for example we have seen some cases of early high-kilometre often-fast-charged packs where the modules in the middle of the rear stack have slightly lower capacity than the rest, but even in these cases swapping these modules is rarely justified.įor Leaf owners with a heavily degraded battery pack wanting a significant increase in overall capacity (range), we feel that a complete battery replacement or upgrade is the best option. As a result, most cells in an aged pack tend to have similar capacity and in these cases just swapping a few modules in the pack is a pointless exercise. In most cases that we have seen, the Nissan Leaf’s lithium ion battery cells tend to naturally degrade fairly evenly.
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