TerraLUX Lightstar in 2-3 cell Mag Lite and Li Batteries

alnico357

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I'm not finding an answer to my question. Will the TerraLUX run on lithium batteries OK? Many thanks!
 

Bullet Bob

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have you bought the terra lux yet? if so which one. there should have been a voltage range listed on the unit.
 

alnico357

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I've had the emitter several years. Since it works for three 1.5 volt C cells I'd hope two Li C cells would be OK.
 

fmc1

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Energizer has a patent on primary lithium batteries in the US and they do not make them in C size. You could use AA to C adapters and run two of them with a dummy C cell or better yet three of them. If you are talking about lithium ion rechargeable batteries you would need a 26500 with 2 dummy C cells. Two 26500's would be 8.4V fully charged and probably be too much voltage for a bulb rated for three C's or 4.5V. A 14500 in a AA to C adapter with two dummy C cells would be another option. 14500's are way easier to find that 26500's and cheaper. Also a C cell is 25mm in diameter, a 26500 is 26mm in diameter so it might be a very tight fit depending on the battery wrap.

Frank
 

xxo

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1 Li-Ion cell (assuming that is what you are asking about?) is equivalent to 3 alkaline or 3 NiMH cells in Voltage.....If your drop-in is rated for a 3 cells you should be OK, though you should use a protected cell. You will also need some sort of adapter to run the single Li-Ion cell. Multiple Li-Ion cells have too much Voltage and will likely damage your LED.
 
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Bullet Bob

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Find out from terra lux what the voltage range is. As xxo said one LI IOn rechargable battery is gonna be 4.2 volts. but the terra lux may have a wider range of voltage uses. if so then 2 Li Ion batts would give that a good kick on output.
 

alnico357

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Good info. I just wanted a C sized Li battery. I've had battery leakage problems. I'm not interested in rechargeables or conversions.
 

xxo

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Good info. I just wanted a C sized Li battery. I've had battery leakage problems. I'm not interested in rechargeables or conversions.

Lithium primaries should be fine even though they have a little higher open Voltage, it drops down as soon as they are put under load. But I don't think they make lithium primary cells in C size - Energizer only offers ultimate lithiums in AA or AAA sizes. AA's are easy to run in C cell lights, adapters are available or you can make your own pretty easily, even out of rolled up news paper. I used to make adapters like that, now I 3D print them.

s2HbiGI.jpg


The top adapter is for a 18650 and the bottom for 3 AA's.
 
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