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by pbui19
Mon Apr 20, 2020 12:51 pm
Forum: Batteries and Battery Management
Topic: 12v Battery - All You Ever Wanted To Know
Replies: 14
Views: 8772

Re: 12v Battery - All You Ever Wanted To Know

We discovered the "quirk" early on, that the 12v gets drained if locked by the fob. Since then, I have into the habit of locking by pushing the lock button on the door on the way out, making sure key is in hand. Replaced the 12v with a sealed 12v from Harbor Freight a year ago, seems to be...
by pbui19
Tue Apr 14, 2020 6:50 am
Forum: Batteries and Battery Management
Topic: using a Lev50 pack for solar
Replies: 12
Views: 3703

Re: using a Lev50 pack for solar

Solar (PV) inverters that are designed for 240 VAC grid tie operation can be found quite cheaply as used or salvage, and are designed for up to 420 VDC input. I expect it would survive the relatively unlimited ampacity of a battery pack in the circuit due to their ability to sustain a shutdown and ...
by pbui19
Tue Mar 31, 2020 9:12 am
Forum: Suggestions for Mitsubishi
Topic: Better charging controls
Replies: 31
Views: 23174

Re: Better charging controls

has any one attempted to external control start/stop charging with a timer by triggering the J17xx charge plug button switch ?
by pbui19
Sat Mar 14, 2020 11:56 am
Forum: Batteries and Battery Management
Topic: using a Lev50 pack for solar
Replies: 12
Views: 3703

Re: using a Lev50 pack for solar

I've been thinking about this as well, so far: Charging: Use level 2 at 3kw AC via the regular AC & vehicle charger setup; once the PV inverter is turning on, either via the grid or an islanded-subgrid. This way, the pack is maintained by the vehicle build-in BMS. Dis-charge: the meager 700w-100...
by pbui19
Fri Mar 06, 2020 2:33 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 494
Views: 140702

Re: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter

"The 20A fuse in the OBC has never been found to blow even though it is in the same current path as the MCU fuse? "

How/where is the OBC 20A fuse mounted ? you had hypothesized previously that the MCU 20A may suffered from mechanical vibration. I don't know where the OBC 20A fuse is.
by pbui19
Wed Feb 26, 2020 3:00 pm
Forum: Batteries and Battery Management
Topic: Fuel gauge vs tortoise
Replies: 33
Views: 6620

Re: Fuel gauge vs tortoise

I recall a post by ikiev, may be in the OBC trouble-shooting thread, with a reference to a user-manual page, saying that it's not recommended to disconnect the aux for over a month. If so, the computer has to be re-learn, something about the pack status.
by pbui19
Wed Feb 26, 2020 2:54 pm
Forum: Other Electric Vehicles
Topic: Life with Chevy Bolt EV
Replies: 60
Views: 31501

Re: Life with Chevy Bolt EV

We have 2x 2017-Boltev and have been quite happy with them...knock-on-wood. In fact, it's the 2016 Volt that is giving us grief, the center screen display has gone dark and at >60kmiles, it's out of warranty. Stealer wants ~$1500 to "try" replacing the HMI (Human Machine Interface). I fail...
by pbui19
Fri Feb 21, 2020 2:38 pm
Forum: Batteries and Battery Management
Topic: Care and Feeding of the OBC/dc-dc
Replies: 27
Views: 8439

Re: Care and Feeding of the OBC/dc-dc

... 3) Cutting AC power off at the power point instead of through EVSE or leaving to fully charge. My main concern is point 3. No one would design an AC charger that is not tolerant to power cut offs at the source. Surely? From the poll thread , the majority of owners who reported failures explicit...
by pbui19
Fri Feb 21, 2020 2:19 pm
Forum: Batteries and Battery Management
Topic: my 2013 Peugeot iOn will not charge :(
Replies: 33
Views: 9867

Re: my 2013 Peugeot iOn will not charge :(

... The reason i believe the MCU fuse mechanically fails first is that there is a smaller 20A fuse on the OBC output between the snubber caps and the MCU fuse, which has never blown in anyone's OBC or MCU fuse failure . Over time, the shock and vibrations while driving caused mechanical fatigue of ...

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