Breaktru Forum
eCigarette Forum => Battery => Topic started by: Breaktru on June 15, 2012, 07:51:10 PM
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Practical Considerations: Batteries and Fuses (http://www.allaboutcircuits.com/vol_1/chpt_11/5.html)
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Nice info clear and concise ;cheers;
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Simple to understand :thankyou:
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Yes very good info Break.
The only question I have is what is a good fuse to use?
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Yes very good info Break.
The only question I have is what is a good fuse to use?
A PTC, resetable fuse. Rating of 3 - 3.5 hold and 6 - 7 amp Trip.
Craig had posted these: Resetable PTC (http://www.littelfuse.com/products/Resettable+PTCs/Surface+Mount/LoRho/1210L350SL.html)
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A PTC, resetable fuse. Rating of 3 - 3.5 hold and 6 - 7 amp Trip.
Craig had posted these: Resetable PTC (http://www.littelfuse.com/products/Resettable+PTCs/Surface+Mount/LoRho/1210L350SL.html)
Ok kewl I did order 10 of those this morning I just wanted to make sure that nothing new has come out.
Just so I follow the information from the OP and the site it directs to, when ran in series one fuse is ok on the neg. (-) side, when parallel you should fuse each battery on the pos.(+) side.
If you use those 20c cells from hobby king can you solder the fuse right to the tab?
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A PTC, resetable fuse. Rating of 3 - 3.5 hold and 6 - 7 amp Trip.
Craig had posted these: Resetable PTC (http://www.littelfuse.com/products/Resettable+PTCs/Surface+Mount/LoRho/1210L350SL.html)
This link appears to be broken. Do you have a better link Dave or anyone?
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This link appears to be broken. Do you have a better link Dave or anyone?
I just checked out the link and it worked for me...
Just so I follow the information from the OP and the site it directs to, when ran in series one fuse is ok on the neg. (-) side, when parallel you should fuse each battery on the pos.(+) side.
Putting the PTC on either the Neg or Pos side for both Series and Parallel hooks like shown in the diagram will work the same.
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If you use those 20c cells from hobby king can you solder the fuse right to the tab?
An SMD fuse (surface mount) should really be soldered to a PCB. It's not structurally designed to free hang with wires soldered to the end, though you could probably solder wires onto it without a whole lot of trouble. The best thing to do would be to make a little PCB for it. Mount the fuse onto a PCB then solder the cell tab to a pad on it.
The other option would be to find a leaded PTC fuse and use that. The SMD ones are better, lower resistance, more compact, but you can find leaded ones that will work well.
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An SMD fuse (surface mount) should really be soldered to a PCB. It's not structurally designed to free hang with wires soldered to the end, though you could probably solder wires onto it without a whole lot of trouble. The best thing to do would be to make a little PCB for it. Mount the fuse onto a PCB then solder the cell tab to a pad on it.
I will probably do that..... I will make one that goes across both tabs and solder the tabs, fuse and then the leads off of that.
Thanks Craig.
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That's what I would do. You can mount the PCB to the cell with two sided tape. The thick VHB or UHB stuff is best.
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working now thanks :popcorn: