Re: [RE-wrenches] LiFePO4

2016-01-25 Thread Peter Parrish
Let me wade in here leading with my chin. (1) "Li batteries" come in a bewildering number of chemistries. Try this on for size: LiCoO2 (LCO), LiNiCoAlOx (NCA), LiMn2O4 (LMO), LiFePO4 (LFP), LiNiMnCoO2 (NMC), LiFeMnPO4, etc. (2) Each chemistry has its own virtues and vices: voltage per cell, cy

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

2016-01-25 Thread Dan Fink
Hello Mark; My NiFes went in last March, I'm almost at a year living with them off the grid. To avoid writing a novel here I'll group my comments into Oddities, Advantages and Disadvantages. Advantages: ~ at least 25 year lifespan ~ 10 year warranty ~ Can add more parallel strings at any time/age,

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

2016-01-25 Thread markf
Dan, Can you give us a quick over view of the ins and outs of the NiFe batteries? Thanks, Mark Frye > Marco; > Winter storms, hurricanes, earthquakes, tornados, floods, etc. - backup > power. Maybe load shaving as the utilities get more persnickety on time of > use upcharges. > > Of course f