joeth
EV Tyre Kicker
Posts: 5 
LEAF OWNER?: Yes
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Post by joeth on Jul 25, 2016 21:03:40 GMT 11
First post - just starting to monitor this forum for info on emerging queries re our Leaf 2012 (purchased Nov 15 in Canberra - done 3800 km). Last overnight charge topped out at a purported 103km, and after 40 km by the odo had dropped seven sections on the battery level bar. We live on a hill, and the trip was on a cold night with heavy rain - heater, wipers etc. But still...
I'm looking at battery use issues, and many posters are more tech-savvy than me, so pls excuse basic questions: what's SOH, and what's GIDs? Wikipedia couldn't help.
Would there be value in making a sticky with a glossary of acronyms or other terms the clueyer members throw in? "Leafy language for dummies"? Or maybe something already exists that I haven't found yet?
thanks all.
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Post by Phoebe on Jul 25, 2016 21:55:36 GMT 11
I have battery storage with solar panels as well as my LEAF and I didn't know what SOH (State of Health - How the full charge now compares with when the battery was new or how worn out the battery is) or SOC (State of Charge - How much charge is left since you fully charged the battery, so you know when you'll need to recharge) was either so I hunted on the web and found this. I think it has a definition for every term that has ever been used about any kind of battery. Some times they are a little hard to find but they are all there. Hope you find it useful. Battery University - Technical Battery Terms.docx (106.53 KB) |
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Jul 26, 2016 1:22:31 GMT 11
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Post by Phoebe on Jul 26, 2016 6:27:01 GMT 11
Haven't seen that Glossary before - very handy  |
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Post by rusdy on Jul 26, 2016 11:57:24 GMT 11
First post - just starting to monitor this forum for info on emerging queries re our Leaf 2012 (purchased Nov 15 in Canberra - done 3800 km). Last overnight charge topped out at a purported 103km, and after 40 km by the odo had dropped seven sections on the battery level bar. We live on a hill, and the trip was on a cold night with heavy rain - heater, wipers etc. But still... I'm looking at battery use issues, and many posters are more tech-savvy than me... Without looking into your battery details via LeafSpy, it's very difficult to ascertain the SOH (State of Health) of your battery. From my own experience, heavy usage like yours (defogger consumes 4.5kW constantly!!  ) brings down my range substantially. My normal range is 90-100km at 80% charged down to 60-70km with such heavy usage (after 40-ish km only 3 bars left  ). That was on flat ground though, so your hilly driving surely even worse. So, there is still probability your battery is still good and simply showing normal range under heavy usage. The 103km range in the beginning could be due to the car is 'learning' from your previous heavy usage too. PS: I've already lost one bar. |
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joeth
EV Tyre Kicker
Posts: 5
LEAF OWNER?: Yes
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Post by joeth on Jul 27, 2016 20:41:22 GMT 11
thanks very much - just what I needed. And thanks Phoebe too for your earlier help. |
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joeth
EV Tyre Kicker
Posts: 5
LEAF OWNER?: Yes
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Post by joeth on Jul 27, 2016 20:53:04 GMT 11
Without looking into your battery details via LeafSpy, it's very difficult to ascertain the SOH (State of Health) of your battery. ... Thanks rusdy for those words of comfort. I'm after a LeafSpy and have bought a KW902 scanner on Ebay, as per forum recommendations in the battery section. Not sure whether to get the LeafSpy at $15 or the Pro model at $22. I suspect that given my tech limitations the standard version will probably be more than adequate. Do you (or any other readers) have a view? |
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Post by jeffjl on Jul 27, 2016 21:15:36 GMT 11
Without looking into your battery details via LeafSpy, it's very difficult to ascertain the SOH (State of Health) of your battery. ... Thanks rusdy for those words of comfort. I'm after a LeafSpy and have bought a KW902 scanner on Ebay, as per forum recommendations in the battery section. Not sure whether to get the LeafSpy at $15 or the Pro model at $22. I suspect that given my tech limitations the standard version will probably be more than adequate. Do you (or any other readers) have a view? For $7, buy the Pro version. Yes, the heater drains the battery fast. The A/C is much more efficient. Welcome to the LEAF club. |
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Post by rusdy on Jul 28, 2016 11:55:20 GMT 11
Without looking into your battery details via LeafSpy, it's very difficult to ascertain the SOH (State of Health) of your battery. ... Thanks rusdy for those words of comfort. I'm after a LeafSpy and have bought a KW902 scanner on Ebay, as per forum recommendations in the battery section. Not sure whether to get the LeafSpy at $15 or the Pro model at $22. I suspect that given my tech limitations the standard version will probably be more than adequate. Do you (or any other readers) have a view? explains much better than I ever can. I had the free version (got it last year) and can't access screen 3 and 4 (and no record keeping capability). What I can recommend (it has been very helpful for me) is to check your 'SOH' and 'Health' regularly (like monthly) and record these to predict your future degradation. For example:  Cell balance (Max Voltage Diff) is also very important. This basically tells you whether you have a bad cell or not. |
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Post by EVangelist on Jul 28, 2016 19:48:14 GMT 11
First post - just starting to monitor this forum for info on emerging queries re our Leaf 2012 (purchased Nov 15 in Canberra - done 3800 km). Last overnight charge topped out at a purported 103km, and after 40 km by the odo had dropped seven sections on the battery level bar. We live on a hill, and the trip was on a cold night with heavy rain - heater, wipers etc. But still... Welcome to the forum joeth! If you are interested, I did a dissertation on the GOM in this thread. Basically, I don't trust it, for my driving patterns it does a fairly poor job of estimating remaining range. I just rely on the bars of charge left and the experience I have built up over time. Our Leaf is now 20 months old (since purchase, at least!), 16000km, and has lost 1 bar. An 80% charge on Eco usually shows a range of around 120 km. GOM seems to drop rapidly for the first 8 bars and then slow down. I estimate it's true, useful range with 100% charge is now around 120km, i.e. what the GOM shows at 80% charge. I've driven to Thirroul and back from Sydney, a return journey of over 130km with a really steep escarpment to traverse, and the Leaf made it easy with a top-up at Thirroul. See this thread. That experience told me that even in challenging driving conditions (hilly, motorway speeds, 100+ km/h), I would have come close to being able to do the trip without topping up at Thirroul. I would have been about 2 bars short, the trip used 14 bars. As others have noted, climate control can really chew up battery. I find A/C cooling makes very little difference, but the heating is a killer. I don't use it unless I'm shivering  . Wipers, radio, lights etc have virtually no effect, don't worry about those. Your confidence on range will grow over time, don't sweat it, as you build up the hours behind the wheel you will get a good feel for the real range for your driving style and conditions. |
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Post by duncan on Aug 4, 2016 20:47:42 GMT 11
lol....I'm pretty sure GIDs are GIDs because they were first identified on the LEAF CANbus messages by a bloke called Gary Giddings (back when we needed serial displays, before Leaf Spy existed). I've got one his GID meters, its a good thing. They are the raw number of, well, GIDs that the LEAF thinks is left in the battery. An new car starts with about 280 when full, ours is down to about 180 with a full battery now
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) brings down my range substantially. My normal range is 90-100km at 80% charged down to 60-70km with such heavy usage (after 40-ish km only 3 bars left 
). That was on flat ground though, so your hilly driving surely even worse. So, there is still probability your battery is still good and simply showing normal range under heavy usage.
. Wipers, radio, lights etc have virtually no effect, don't worry about those.