DIY Grid Reconditioning Charger

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Abarnabe, Sep 13, 2020.

Tags:
Page 5 of 5
  1. Abarnabe

    Abarnabe Member

    Joined:
    Jan 7, 2018
    165
    97
    0
    Location:
    Netherlands
    Vehicle:
    2010 Prius
    Model:
    III
    I can confirm that this is not what prolong instructions says and can potentially damage the battery.
     
    #81 Abarnabe, Jul 24, 2025
    Brian1954 and johnHRP like this.
  2. johnHRP

    johnHRP Active Member

    Joined:
    Aug 6, 2014
    628
    179
    0
    Location:
    KA, DE
    Vehicle:
    2015 Prius
    Model:
    Excel
    Yeah..., just sell the prolong and cash it to add funds for new battery
     
    #82 johnHRP, Jul 24, 2025
  3. A.J

    A.J Junior Member

    Joined:
    Dec 13, 2023
    36
    3
    0
    Location:
    Worldwide
    Vehicle:
    2010 Prius
    Model:
    Base
    You mean the bulb discharge wattage or which?

    Saw this video of a guy who used the Automated Prolong Charger and Discharger


    1st: Charge-Discharge 240+-~ to 134vdc.
    2nd: Charge-Discharge 240+~ to 101vdc
    3rd: Charge-Discharge 240+~ to 84vdc
    Then Charge

    UPDATE:
    My latest bulb arrangement for 220v bulbs:

    First Discharge:
    240+-~ to 196v: 400w or less bulb
    196v to 134v: 150w or less bulb

    Second Discharge:
    240+-~ to 196v: 400w or less bulb
    196v to 134v: 150w or less bulb
    134v to 101v: 50w or less bulb

    Third Discharge:
    240+-~ to 196v: 400w or less bulb
    196v to 134v: 150w or less bulb
    134v to 84v: 50w or less bulb

    But i use 60w in replacement for the 50w because i can't get a 50w bulb around.
    I have now attached the Prolong bulb charge voltage and wattage guide too.
    Discharge-Arrangement-Voltage.png Light-Bulb-Discharge-Table.png
     
    #83 A.J, Jul 24, 2025
    Last edited: Jul 25, 2025
  4. PriusII&C

    PriusII&C Active Member

    Joined:
    Oct 15, 2013
    416
    136
    0
    Location:
    San Jose, California
    Vehicle:
    2012 Prius
    Model:
    II
    @Abarnabe Care to elaborate what's not right in @A.J's statement?
     
    #84 PriusII&C, Jul 24, 2025
  5. PriusII&C

    PriusII&C Active Member

    Joined:
    Oct 15, 2013
    416
    136
    0
    Location:
    San Jose, California
    Vehicle:
    2012 Prius
    Model:
    II
    Another question: do you need to turn on the traction battery fan during discharge, assume the light bulbs are located away from the battery and the surrounding is not extremely hot? I know you need the fan during charging to keep the battery from overheating.
     
    #85 PriusII&C, Jul 25, 2025
  6. A.J

    A.J Junior Member

    Joined:
    Dec 13, 2023
    36
    3
    0
    Location:
    Worldwide
    Vehicle:
    2010 Prius
    Model:
    Base
    I have updated my post above with an updated wattage arrangement, it seem to revolve around the bulb wattage change arrangement.
     
    #86 A.J, Jul 25, 2025
  7. Abarnabe

    Abarnabe Member

    Joined:
    Jan 7, 2018
    165
    97
    0
    Location:
    Netherlands
    Vehicle:
    2010 Prius
    Model:
    III
    thiz is correct
    You don' t need the fan while discharging, in my experience
     
    #87 Abarnabe, Aug 7, 2025
  8. Abarnabe

    Abarnabe Member

    Joined:
    Jan 7, 2018
    165
    97
    0
    Location:
    Netherlands
    Vehicle:
    2010 Prius
    Model:
    III
    Prolong has all the instructions on their website. Just follow the instructions as Brian said, what is worng in your first and second statements are wattage and voltages, below certain voltages you should lower the bulb wattages to reduce the risk of cell damage and pole inversion
     
    #88 Abarnabe, Aug 7, 2025
    bisco likes this.
(You must log in or sign up to post here.)
Page 5 of 5