Help! Need a Charger for Sea Hunter XL 500 Pulse or Output Volts/amps

[PA John]

Got an Sea Hunter XL 500 Pulse off Ebay, the batteries were shot. Got a new battery pack but I am questioning the charger.
Input: 110VAC
Output: 9VDC 350ma

My concern is that the charger transformer says " Sanyo Cordless Telephone Charger", so you can see why I am concerned.

 

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[Kentucky Kache]

If the polarity matches and it fits the hole, it should be fine.

And, of course, the voltage must match.

 

[PA John]

If the polarity matches and it fits the hole, it should be fine.

And, of course, the voltage must match.

I need to know the correct voltage that the charger is supposed to send to the detector.

I believe someone wired the Sanyo Cordless Telephone Charger to the plug.
What I don't know is if they put the right voltage charger that this machine is supposed to have to charge batteries efficiently.

It seems to be working but I want to be sure I am not going to wait three days for it to fully charge or that I am going to burn up the charging circuit in the detecor.

 

[homefires]

12 VDC at .200 amps works just fine.

Your battery pack is 8.4 volts.

I moded mine to 8 cells and runs 9.6.

You can figure out your charge rate here!

http://www.fly-imaa.org/imaa/hfarticles/electro/v9-3-13.html

Battery Rated Out Put / .200 amp

1200ma rated battery

Divided by .200amp

would be a 6 hour charge.

 

[PA John]

Thanks Homefires. Great to have the schematic!

I went to a local store "Batteries Plus" and them made me a battery pack with 7 sub c cells as the manufacturer configured. They only charged me $28.99!!! I soldered them in place and charged them up with the 9VDC charger and I am back in business. Took 24 hours to charge. When I turn the machine on though the battery check it performs at start up, the meter only goes up right between 8 and 9.

Where do your meter go to? I am thinking I might go back for another pack but make it the 8 cell like you did and get a charger from them to charge them instead of using the charging circuit in the machine.

I talked to the factory, they said that the charger that came with the unit was a 24vac but it had a diode in the connector that pulsed the power and brought the voltage down to 12vdc? Sounds to me like I should use a 12vdc charger instead of the Sanyo Cordless Telephone one.

 

[homefires]

My Battery check reads between 9 - 10 .

remember I'm useing the extra battery.

Sounds like you have a handle on it.