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Post by empowerrepower on Mar 29, 2015 11:56:48 GMT 11
I'm feeling technicially challenged, but know that someone here will have a better grasp on this than me, and might be able to help.
Carwings hasn't worked for the last three weeks since I got my Leaf, and I'm unsure of what data I can access without it. I'd like to know how many kwH it is taking each time I recharge - is there a way to find this info? I do track my solar system and household kwH use, but don't know how to tell how much of the increase is due to the car.
Secondly, I'd like to know the battery SOH - I have twelve bars, but believe there is other data. Can this be accessed without Carwings? I did download the Windows Leaf phone software, but it doesn't appear to work without Carwings.
I've noticed that when I'm driving sometimes there is a message on the touchscreen that data is being uploaded, so I'm hoping that Carwings is working at my end, but won't know until the Carwings server is up and running again.
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Post by kris on Mar 29, 2015 12:50:52 GMT 11
You could insert one of those plug in kwh cheapie meters between your EVSE & the wall socket but remember chargers are only ~80% efficient so only ~80% of what it reads makes it into your battery. LeafSpy is very nice android app that runs with an OBII dongle you plug in under the steering column, tells you just about everything you need to know about SOH etc.
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Post by hieronymous on Mar 29, 2015 19:40:21 GMT 11
I'd like to know how many kwH it is taking each time I recharge - is there a way to find this info? I do track my solar system and household kwH use, but don't know how to tell how much of the increase is due to the car. Secondly, I'd like to know the battery SOH - I have twelve bars, but believe there is other data. Can this be accessed without Carwings? I did download the Windows Leaf phone software, but it doesn't appear to work without Carwings. You need a wall meter; this gives you the equivalent of a petrol receipt for an ice car i.e. actual energy "purchased", which, compared with your odo reading, gives a true efficiency reading. I use this one. The best phone software is Leaf Spy. if you have an android phone, Leaf Spy Lite is free but still gives you: * 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 You do need to buy online a bluetooth or wifi sender (dongle) - I am sure someone on the forum can suggest one that works well with the Leaf CAN bus from (usually) eBay or Amazon. If you are an Apple fan, only Leaf Spy Pro is available, and only via a wifi sender. |
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Post by empowerrepower on Mar 29, 2015 22:46:50 GMT 11
Thanks for the info, Hieronymous, and now a few more questions!
With the wall meter, wouldn't it need to be a 15 amp one rather than 10amp, to go with the evse?
The Leaf Spy looks pretty comprehensive - I have a Windows phone, but there are a Android/Apples in the family. Am I correct in thinking that Leaf Spy works independently of Carwings as long as one has the dongle?
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Post by caskings on Mar 29, 2015 22:50:54 GMT 11
The travel EVSE that comes with the leaf only draws ten amps. A few members here (myself included) didn't get a 15 amp socket installed and just used a 15 to 10 amp fused adaptor to step it down to a 10 amp plug www.jaycar.com.au/p/MS4044 |
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Post by hieronymous on Mar 30, 2015 5:03:14 GMT 11
Forgot to mention the 15A- 10A adapter; I use the same Jaycar unit as caskings. It also allows you to travel and plugin to any 10A socket.
Leaf Spy and other monitoring solutions have all been developed by Leaf owners. Nothing to do with Nissan or Carwings.
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Post by gabzimiev on Mar 30, 2015 10:11:21 GMT 11
you can also buy a 15amp power meter but they are more expensive, the jaycar unit doesn't have thermal protection so it's still possible to burn your house down if you have a hot join. safety factor it's best to not add anything into the circuit and plug the EVSE directly into the powerpoint.
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Post by hieronymous on Mar 30, 2015 12:02:53 GMT 11
you can also buy a 15amp power meter but they are more expensive, the jaycar unit doesn't have thermal protection so it's still possible to burn your house down if you have a hot join. safety factor it's best to not add anything into the circuit and plug the EVSE directly into the powerpoint. Yup, good general advice, so best not to habitually plugin the EVSE to the 15A-10A Jaycar unit, then the Jaycar to the meter, then to the wall, THEN walk away and ignore it (although as noted above, some forum members do regularly charge this way, perhaps not with the meter as well). BUT if you want an occasional reading to get an accurate consumption number for comparison, and you periodically check around the cables and boxes to see if anything is getting HOT, then go ahead. I find the Jaycar unit cold everywhere, the meter a little warm at the back next to the plug, and the warmest to touch is the EVSE! By the way, the wall plug I use is the recommended 15A. |
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