Hybrid Automotive Charger/Discharger before & after comparison data

Did you follow your usual discharge plan, Jeff? By that I mean did you use 200w, then 120w, then 60w bulbs while dropping to 204V, then 201V, then 196V, etc.? I'm doing that exactly RIGHT NOW and my voltage is pretty much following the "before" curve.

 

I'm asking because it looks like you kept higher wattage bulbs in at the end of the discharge. The voltage on the "before" curve dropped from 195 V to 175V in about 20 minutes. Normally, I think you would have been using 40w bulbs starting at 196V to drop the voltage at a slower rate.

 

Interesting information. Just by coincidence, I have a 2005 w/ 149k on it. This past 7 months of ownership has been interesting from a mileage stand point. The best single tank average I experienced was on 5/23/14 292 highway miles with 51 mpg avg. I took a photo of display for my personal records. That only happened one time. While I did get 47-49 mpg on several trips ( same route) I have not achieved the 51 avg since. The past few months have been In the 41-44 range. The worst was 38 but that was in November when the upper Midwest was experiencing mid January temperatures. I expect an avg 5 mpg loss during below freezing temps so it is not that surprising. Lately I have been experiencing city driving mileage averages below my highway averages. Again it's been cold so the demand on the vehicle systems is higher. I am wondering if there would be much gain if any by doing this procedure? The other thing I wonder is if this particular comparison chart shows a 19% increase, how does this compare to a new battery. Is it still substantially below what a new batteries performance would be or does it get it back to 95 % of new?

For the record I put a little over 700 miles per week on my car 95% highway.

 

Jeff,
Thanks for sharing this.
Graphs are always so much more interesting than me just blathering on about this kind of stuff.

Nice to see the data graphically.

 

i have some technical questions for you regarding the "Manual light Bulb Discharger".


1- It is difficult in my country to find "400w incandescent lights bulbs" because of the regulations, it is forbidden on the market.

I finally got two "incandescent lights bulbs of 300w-230v and e27 base" here is attached the picture.

Tell me can I use it to discharge the battery?

Does your device use e27 or e40 scew base?


2- the second question concerns the reconditioning procedure.

First if I have followed your instructions in your website correctly, I must first charge the battery up to the stabilization voltage of 240V. And balance it for 4 additional hours.

Then, I have to connect the "manual light bulb discharger" then screw in the two 300w-220v bulbs. I have to wait for the first bulb change threshold (196 volts) to replace with a 150w-220v power bulb. Finally, when I reach the voltage of 134 volts, I unscrew the bulbs and disconnect the "manual light bulb dicharger". This is the first cycle. I do the same for the second and third cycle respectively with the termination voltages of 84V and 17V. By taking care to charge and balance the battery between cycles.

Never connect or disconnect the harness whit the load.

This is what I think I understand. Tell me if i"m wrong?


Now my question is: how to unscrew the bulbs to change them without burning hands? in other words how to proceed to replace them?


3- I have an open car park, for safety reasons can I roll up the windows during the charge and discharge at night, without harming the battery?

Excuse my english.


Best regards

Posted via the PriusChat mobile app.

 

What is 'your country' specifically? Your profile says New York, but I suspect you live elsewhere and not in the US of A? You could help us to help you by updating your user profile to the correct details.

E27, I believe.

No, at least I wouldn't. You will blow the inline fuse too easily due to the high inrush current on those bulbs and will end up having to open up the battery to replace the blown fuse. (Don't ask me how I know!)

No, you should be using 200w-110v bulbs and 150w-110v bulbs respectively.

If you can only purchase 220V bulbs because your country's power system is 220V/50Htz then you need to wire the bulb holders differently. If you are to use 220V rated bulbs the better way is to wire 6 bulb holders in parallel and then you can use any combination of 50W and 100W bulbs to make 50W (1x 50W), 150W (1x 50W + 1x 100W), or 400W (4x 100W) as required. Switching the bulbs on one at a time also helps manage the inrush current.