bitmanEV
Posts: 27
Joined: Tue Aug 23, 2016 10:56 am
Delivery Date: 30 Aug 2016
Location: Redhill, UK

Re: Replace small 12v battery to regular one.

Sun Jul 08, 2018 9:31 am

arnis wrote:Easy fix is to disconnect current sensor and all you guys will be happy with OEM battery
being heavily charged like with good ol' gasoline car.


i have just done that and will keep an eye on my OEM battery for now to see if it indeed an improvement :)
Next EV - Byton M-Byte reserved
Nissan Leaf MK1 - Japan build
Renault Zoe R240 - ditched after 8k Miles due crap quality / DS65 WBL
Toyota Rav4 (ICE) SWMBO (rock solid)
Subaru Forester - PX for EV (ODO 200.000+ Miles)
Driving BEV since Dec 2015

User avatar
Stanton
Posts: 2088
Joined: Thu Feb 03, 2011 10:56 am
Delivery Date: 01 Sep 2011
Leaf Number: 7458
Location: Plano, TX
Contact: Website Twitter

Re: Replace small 12v battery to regular one.

Sun Jul 08, 2018 9:39 am

Leaf15 wrote:Replaced with exact fit 12V 46Ah 650A Lithium Iron Phosphate Battery LiFePO4 and never looked back. Always 13.35V when parked.


I have done the same with a LiFePO4 battery about half the "size" (20AHr) with no issues; you can search for the thread I started over 3 years ago if you wish. Remember: the Leaf doesn't require "cranking Amps" like an ICE car; Nissan just put something similar to what they already use in their low-end compact cars (high-volume, low cost part).
2011 Blue Ocean SV w/floor mats & window tint
12v LiFePO4 battery & FIAMM 74100 horns
Wet Okole seat covers (front)
Tor's low-power heater mod
2013 sun visor
3G modem upgrade
L2 EVSE Upgrade
Battery Pack replaced (Rev E) @51 months and 41k miles

Markokk888
Posts: 19
Joined: Wed Mar 21, 2018 4:16 pm
Delivery Date: 21 Mar 2017

Re: Replace small 12v battery to regular one.

Sun Jul 08, 2018 3:14 pm

arnis wrote:Easy fix is to disconnect current sensor and all you guys will be happy with OEM battery
being heavily charged like with good ol' gasoline car.

Yeah right and if its a lithium battery it will soon release a magic smoke and probably get the whole car on fire... Ether way the error code will appear as the current sensing is not gonna make much sense to the on board computer.. the car can even refuse to even charge the battery on some models. i suggest to not do something stupid like this. This is not old gasoline car. And things don't work quit as same.

User avatar
jlv
Posts: 840
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: Replace small 12v battery to regular one.

Mon Jul 09, 2018 7:50 am

I keep an eye on these threads for the day when I will have to replace the 12V battery. Over 4 years and the car still has the original OEM 12V battery. It has never had a problem other than the first time the 3G TCU locked up and caused the battery to go low (lots of DTCs).
'13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17) 32K miTesla S 75D (3/17) 25K mi
Model 3 reservation (still undecided)

arnis
Posts: 896
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Replace small 12v battery to regular one.

Mon Jul 09, 2018 1:29 pm

Markokk888 wrote:
arnis wrote:Easy fix is to disconnect current sensor and all you guys will be happy with OEM battery
being heavily charged like with good ol' gasoline car.

Yeah right and if its a lithium battery it will soon release a magic smoke and probably get the whole car on fire... Ether way the error code will appear as the current sensing is not gonna make much sense to the on board computer.. the car can even refuse to even charge the battery on some models. i suggest to not do something stupid like this. This is not old gasoline car. And things don't work quit as same.


Your talk is based on what knowledge or education? If it is assumption/guessing, then let it be that.
If you don't know how to use multimeter, then don't state those things you just said :| Myth generation
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

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