Re: Battery Upgrades are very possible
Posted: Fri Apr 19, 2019 7:04 am
Its the LBC that dictates to the BMS the state of the pack. Remember the BMS restricted access to "good" parts of the pack based on reports from LBC. So you need an LBC that can see the entire pack capacity.bkvszomorito wrote:The BMS upgrade has already been done on the 30kWh pack before the modification. Unfortunately the original 40kWh BMS does not work with the systems of the 30kWh LEAF.What gets me is your 332 volts to turtle? That is far far far above any previous LEAF pack of any size?
Remember the LBC math error that was forcing the BMS to report false degradation which led it to restrict full usage of the pack? Sounds like you got the same thing going on there.
For me, it seems, that the turtle mode is not only depending on the voltage of the pack, but some other factors, as the internal resistance or different calculations.
Yesterday, I measured the charging power, and I have consumed 24.5kWh, to charge from 22% to 100% (according to the 30kWh BMS / displayed percentage) by means of 32A wall box / 6.6kW onboard charger.