4 of these units could add 8 kw demand and 10kwh to EV only use, I have little experience with Prius batteries. opinions? Voltage controlled to maintain %80 charge you could add as many as you could fit. Basically a dc to dc converter add a bridge diode to the ac and let them run. When soc gets low the inverter turns on. I am a retired electronic tech, I've got 4 weeks with a 2006 Prius. I will drive this for a few years then upgrade, that should give me time to learn what to upgrade to.
sounds like a lot of missionary work. it can and has been done, but only by the best and brightest. all the best, please keep us posted!
I just learned however that the 2019 and up RAV 4 uses a DOUBLE battery pack. Looks like it maybe may be two Prius c packs together. Very exciting and wondering if any coding or adapting can be done. Or possibly even copying it. Because Toyota has proven that we’re not crazy to think two nimh batteries can work.
Toyota is not in the business of proving the presence or absence of insanity, that is not their profile. Is adding a second battery possible? | Page 6 | PriusChat
Yes, thank you I am aware my information about the two battery was wrong. It is hardly common knowledge. But again I appreciate your help in enlightening myself and the whole internet community!
17 12.8v 100ah lifepo batteries for auxiliary traction motor 2006 prius, connected through a 200A diode. This would act like an auxiliary battery, it would not charge while driving, just supply current when the main battery is lower in voltage. You would charge at home, 20h at 5A on a single 15a cord. the aux battery can supply 100A at 200-240v but mostly at 210 to 220, so it would only contribute at 50 to %80 soc/main bat. this would cost $2k and use all of the spare tire space+ more, for a car that only does 40mph in ev mode. but it could drive 30-40 miles between charges. It would not be cost effective for a gen 2 but might be for gen 4
An enable switch wired to the ignition, would automatically disable through a contactor, add a charger interlock so it could not be charged while connected to the main battery. When disabled the car would run normal, even when enabled regen will work, but it only works with the NMH.
The gen 4 has a lithium option that IS NOT the Prime model. Looks kind of like the gen 4 pack from the outside, though Lithium on the inside. I haven't researched much other than the little I did for the PiP in a gen 3. Would be interesting to see how to fit the Prime pack or maybe the earlier 13-15 years PiP which is like half the capacity, in a gen 3 or gen 2. Though when researching, like I said, I found there is a Lithium option for the gen 4 that is not the Prime and more like the NiMH pack though in Lithium. Offhand thinking, could easily spoof the gen 2 HV Battery ECU sense wires. Though would want to be critical of the pack design so the NiMH inverter-converter PCU wouldn't damage the pack or be damaged. Seems an aftermarket bluetooth BMS for the number of cells used as well would be ideal at the least, so can have a heads up display of the performance and be safe regarding. I am seeing the Nissan Leaf's in the yards as well and debating grabbing more parts off of for a potential design or for those in need. I did grab the plug in charger, which is neat seeing and versatile potentially in the future. Prob can read into and grab the battery charger assembly as well and see what other parts are worth getting.
