LRDP730 Thingy?

Discussion in 'General Electronics Chat' started by Warsaw, Apr 24, 2012.

  1. Warsaw

    Thread Starter New Member

    Apr 24, 2012
    3
    0
    Hello all, was wondering if anyone could help me with a problem i have with a battery pack for my Husqvarna Automower G1.

    The batteries were dead, so i bought a replacement-pack were i had to solder a few wires to the new battery and thats it.

    So here is the problem. When i took of the original plastic i broke a little component (i guess), called LRD P730 (see picture)

    Can anyone tell me what that thing is or does, and MOST important of all: Where can i get a new one, or replacement?

    Hope someone can help me :)
    Thanks
     
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  2. crutschow

    Expert

    Mar 14, 2008
    12,984
    3,223
    It's likely a thermistor or other type of temperature sensor to monitor the battery pack so the charger can detect when the batteries are getting warm, indicating they are charged.

    But I could find no reference to that part number (may be proprietary) so don't know how to find a replacement.

    How was it damaged?
     
  3. Warsaw

    Thread Starter New Member

    Apr 24, 2012
    3
    0
    Hey, thanks for the reply

    It broke. When i was removing the plastic from the original battery it broke, as half of it was in glue :(

    If anyone else could find part og replacement for it i would be very happy :) A new original one is quite expensive and with less mAH than this one. But had to reuse the old wires
     
  4. Warsaw

    Thread Starter New Member

    Apr 24, 2012
    3
    0
    Still seaching for this component.

    Still noone have any idea what it does? or where to find one?

    The components 2 wires, going direcly into the multi-plug along with 4 others that will be the battery +/- and 2 temperature sensors in series (placed between the batteries).

    The broken one im looking for is placed on top of the battery pack and soldered to one of the batteries, then 2 wires into it -> Multiplug

    So im thinking: It cant be a temperature thing as it normally only have 2 wires, right?

    Could it be some sort of mini-contactor as it has 3 poles?
     
    Last edited: Apr 25, 2012
  5. meratz

    New Member

    Oct 16, 2006
    1
    0
    I have the same battery that is incredibly corroded. I have been trying to figure out how it is put together so I can have a new one built instead of paying a fortune for a new one from Husqvarna. I think the tab is just a connector. I will carefully take it apart in the next day or two to see if there is anything special about it. I the meantime, I was wondering if you had an idea of what is connected to the blue and green wires? There is nothing at the end of my wires. I know there was probably some sort of thermistor or something similar before the corrosion ate it. Can you take a pic of it and post?
     
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