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Offline frannyTopic starter
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« on: February 17, 2011, 07:27:59 am »
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Hi,

powerfull and reliable power source for a metal detector is problem. The most convenient solution seems to be use of Li-ion cells.
Inspiring idea can be found at

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http://franny.rajce.idnes.cz/9V_alternativni_napajeni_Tesoro/


Bye,

f.

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Offline Homefire
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« Reply #1 on: February 17, 2011, 08:23:26 am »
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Welcome from New Mexico.

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Offline chopz54
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« Reply #2 on: February 24, 2011, 05:37:45 am »
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Quote:Posted by franny
Hi,

powerfull and reliable power source for a metal detector is problem. The most convenient solution seems to be use of Li-ion cells.
Inspiring idea can be found at

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http://franny.rajce.idnes.cz/9V_alternativni_napajeni_Tesoro/


Bye,

f.


I have never had any problem with the standard 9v set up and they last for ages.
The idea of having re-chargeabe Li-ion looks good on paper...But lashing a much larger battery elsewhere
detracts from the total concept of the Tesoros compact design.
For the cost of a Li-ion battery and charger etc it would be be FAR easier/cheaper to buy some re-chargeable 9volts and a charger....and would easier on eye.
However...if you could find a smaller Li-ion that would re-place an AA battery pack that would be a far better idea.

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Offline frannyTopic starter
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« Reply #3 on: February 25, 2011, 03:11:16 am »
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 Re-chargeable 9V battery is usually a Ni-MH type with limited capacity, maybe 220 mAh. The difference between Ni-MH and Li-ion is almost the same as between carbid and LED lamp. Smaller mobile phone Li-ion batteries (of 1.5+ Ah capacity) can be used if you are able to adapt them for MD purposes. I use cells from older laptop batteries (2.2 Ah capacity) what costs me nothing and recharge them may be three times for the season. I am aware that battery is after coil the second most important part of MD, strongly influencing MD features.

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« Reply #4 on: March 24, 2011, 08:46:33 pm »
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here`s an idea, i own a tesoro and a good thought was a 9volt lithium battery, they last 5 to 7 times longer than regular alkaline batteries, more expensive $9 on average, so my last 9volt lasted close to 30 hours, = 150 hours vs 30 & the cost $4 vs $9 so for the cost of $20 of alkaline batts vs $9 , myself i would go for a lighter alternative, but each to his own........ Cool

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Offline frannyTopic starter
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« Reply #5 on: March 25, 2011, 12:18:22 pm »
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Environmental aspect of MD should be taken into account as well. The less thrown away batteries, the better.
f.

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« Reply #6 on: July 12, 2011, 08:09:35 am »
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very good information

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