One Year With Hymotion Plug-In Prius.

[bestmapman]

Very nice Jay. You are one of the best PHEV drivers out there.

[zcat3]

Originally Posted by ibcs

What happened when you pushed the button over 52 MPH. I always wondered, but I sure was not going to take a chance on purpose.

If by chance Hymotion is listening, my two wish lists would be

1) Bigger battery - I realize I have what I have
2) 220V Charging - I do a lot of errands and always go home. I could plug to 220v and charge so much faster.


---Kent

The ICE just shut off and that was it - of course you have no power until the car gets below 52. I was on a big downhill the first time and a slight downhill the second time, so after uttering a few cuss words I shifted to neutral and coasted to the next exit without dropping below the speed limit.

I like your suggested improvements - I would also add a way to charge the Hymotion pack via regen braking (although as most of us have seen, due to the spoofing software, there appears to almost always be some room for regen into the Prius pack).

[sxotty]

BTW why do youguys want the stock battery charged? I would prefer the stock battery be kept at 50% SOC roughly so that it could actually accept Regen energy. With the hymotion pack there is huge quantities of wasted energy since regen is getting dumped as the stock battery is too full to accept it.

I have been contemplating a method to try and regen again, but haven't quite figured it out yet.

[TheForce]

The Hymotion battery keeps the SOC at about 62% just like the Prius normally would and you can still get all the way up to 80% with regen. On my commute I never see anything higher than 65% so regen is almost useless to me.

[jazzpsy]

I own an 2008 Prius (love it) and am researching whether to buy a 2008 Prius with the Hymotion plug in upgrade. All the posts here are very positive.

2 major questions:
`1) li-on battery life? - I read somewhere that estimated life is 5 - 6 years.
2) Is the Toyota warranty voided if non-dealer installed?

Also what is the 52 MPH hack? On my 2004 I had a gizmo installed that allows me to stay in electric mode up to about 32 MPH.

Martin
jazzpsy@gmail.com

[TheForce]

Originally Posted by jazzpsy

2 major questions:
`1) li-on battery life? - I read somewhere that estimated life is 5 - 6 years.
2) Is the Toyota warranty voided if non-dealer installed?

Also what is the 52 MPH hack? On my 2004 I had a gizmo installed that allows me to stay in electric mode up to about 32 MPH.

Martin
jazzpsy@gmail.com

1. No one really knows yet but its been estimated 5-6 or more. They have been tested for over 9000 charge/discharge cycles and still hold %80 charge.

2. No unless Toyota can prove the extra battery caused the damage.

3. I would not use the 52MPH hack with the Hymotion battery since the battery can only supply between 30-40 amps and you need close to or over 100A to get to 52MPH. You can easily drain the stock battery if you try this. There is at least 1 member here ( ibcs )that uses it with the Hymotion with some success but you have to keep an eye on the SOC. For my commute it would be a pain to use.

[jazzpsy]

"They have been tested for over 9000 charge/discharge cycles and still hold %80 charge."

If I leave it plugged in when not in use, is it continually going through charge/discharge cycles? Or is the charge/discharge cycles calculated in a different way? If it is calculated once a day it would tkae 25 yrs. to die.

Martin

[TheForce]

1 charge discharge is like going from 100% to 0% SOC. From what I was told the Hymotion battery goes from 100% to 3%.

The 9000 cycles were lab tested and not real world. But if the lab tests are true then the Hymotion battery will out last the car.