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Unanswered questions I asked Garrett Tech Support
Posted by: retiredman2006A
Date: August 13, 2018 05:12AM
> Hi Garrett Tech Support,
> Can you advise me if it's alright to replace my NiCad batteries with
> NiMah ones? I was able to determine my nicad battery pack in my
> SeaHunter XL-500 has one dead cell. I'd like to replace the whole
> battery pack with Nickel Metal Hydride type "C' cells and would
> appreciate some advice on whether to do this or just stay with NiCad
> batteries.
>
> Thank you for any reply,
> Charlie Eng
> Sea Hunter XL-500 (purchased around 1980 from KellyCo)
>
>
>



Edited 1 time(s). Last edit at 08/14/2018 01:43PM by John-Edmonton.

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I Forwarded Your Request To Garrett
Posted by: John-Edmonton
Date: August 14, 2018 01:45PM
This is a very busy time for their hobby division. I am sure they will get back to you soon. That Sea Hunter XL-500 machine goes back many years.

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Re: Unanswered questions I asked Garrett Tech Support
Posted by: WaterWalker
Date: August 15, 2018 05:02AM
I see no reason why not. The voltage of each type of cell is 1.2volts.
If you do make the switch, make sure you select NiMH cells with at least the same capacity, mAH rating AND have solder tabs to make the pack easier to assemble. The XL-500 model makes a difference: the PI model of the XL-500 employs 7 Sub-C cells (standard C cells will not into the housing). The VLF model employs three 9V batteries.
Replacing the O-Ring would be advised also when re-assembling the control box.
One last caution: you may need a different charger that is of the correct ratings for the new NiMH cells.


Check out: https://www.findmall.com/read.php?32,1156797 for more information.

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FYI..................
Posted by: John-Edmonton
Date: August 15, 2018 03:22PM
Also, do we have any larger replacement coils for the original Sea Hunters? No coils available

Regarding SeaHunter XL500 battery pack replacement by a DIY'er
1. Can you tell me what the mAh rating of the old nicad pack was?


Garrett part number 9406800 ā€“ Batt. MiMH ā€œCā€ 7 pak is still available.
Voltage 8.4VDC
Normal capacity (@ 5Hr rate): 2800mAh
Normal charge rate: 300mA @16hrs


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