I think if i put the 1.5 on the negative side and the 3.7 on the possitive side, it would work, what you do you think? will i blow up a battery?
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NO NO NO NO NO!
Don't do it!
A 1.5 volt battery is typically Nickel Metal Hydride
A 3.7 volt battery is typically Lithium Ion
I did stack these two kinds once and the Li-Ion battery puffed up and exploded with flames.
It was in a Radio-Controlled plane.
Ya, don't ever mix batteries with different chemistry, never works...
Don't do it!
A 1.5 volt battery is typically Nickel Metal Hydride
A 3.7 volt battery is typically Lithium Ion
I did stack these two kinds once and the Li-Ion battery puffed up and exploded with flames.
It was in a Radio-Controlled plane.
Ya, don't ever mix batteries with different chemistry, never works...
and if i used the 1.5 volt on the negative side, wouldnt the 1.5v charge pass through the 3.7v, not the other way around
2nd opinion....AGREED!
crap you posted too soon. Don't do that either, it's the same thing all over again.
crap you posted too soon. Don't do that either, it's the same thing all over again.
No, the loads are totally different, no matter what, the Mah ratings will differ, the cells will go out of balance sooner or later, then BOOM!
oh,
i have a lighter that i want to mod, but dontn want to try and cram a reg in there and figured that would be a good way to make it 5v, lol
i have a lighter that i want to mod, but dontn want to try and cram a reg in there and figured that would be a good way to make it 5v, lol
It may work, but it is not recommended. The possibility of blowing up a battery (and possibly your hand and face) is very high. You should never mix batteries with different chemistrys, you really shouldn't even put a fully charged batt in line with a partly discharged batt, as you may over-discharge the later, which could result in catastrophic battery failure.
Doesn't have anything about mixing chemistrys, but again, this is never advisable.
The ABCs of batteriesThe ABCs of batteries said:
Doesn't have anything about mixing chemistrys, but again, this is never advisable.
I run a 5 cell LIPO battery in one of my RC buggies.
That's 18.5 volts, a lot of juice.
If all 5 of these batteries don't have the SAME voltage, milliamp hour ratings, charge and discharge rates, if they are ANY different, the pack will go out of balance quickly and Boom! I even had a pack made from 5 IDENTICAL cells, the first cell went a little lower in voltage than the rest, and in a couple cycles, that first cell, handling all of the rest of the current, puffed and would have eventually exploded if used.
That's 18.5 volts, a lot of juice.
If all 5 of these batteries don't have the SAME voltage, milliamp hour ratings, charge and discharge rates, if they are ANY different, the pack will go out of balance quickly and Boom! I even had a pack made from 5 IDENTICAL cells, the first cell went a little lower in voltage than the rest, and in a couple cycles, that first cell, handling all of the rest of the current, puffed and would have eventually exploded if used.
The little sister has what you want and fits 2 batts, reg, pot and switch in there. It's cramped, and may have longevity issues, but fit in a lighter case.
If you're trying to mod the 2 aaa lighter then you might consider going with one 10440 and a booster (as opposed to 2 10440s and a reg), shorter batt life, but might fit better.
a regulator regulates the input voltage down to a lower voltage as required, a booster boosts the input voltage up to a higher voltage as required. I've heard of them being used in mods and seen diagrams showing them being used in mods, but haven't built a mod with one yet myself (I'm still getting a sample order for ti together).
whiles your in here, how the hell do you get a battery connector out of a dead 510 battery? i keep messing them up..
now that's harder, personally I cut it off about 1/8th inch below the button on a manual batt with a dremmel and then kind of peel the liner back with a pair of wirecutters and needlenose pliers. Not easy, much easier (if you can wait) to order some connectors from madvapes.com
The Ti booster won't fit in a aaa space (too wide and tall) plus it is unlikely a 10440 could push it past a whine.
You guys worry too much. My first HV mod used a protected 14500 LiIon and a AA Eneloop NIMh in series with an LDO regulator.
It worked fine.
An "AA" size 14500 LiIon with protect circuit has less than 900 mah of usable power, and a cutoff when it's dead. It can't reverse, because at the cutoff it still has more voltage than a fully charged NiMh, and they're cheap on DX.
The Eneloop has closer to 1800 mah. It won't ever go dead before the LiIon does, so it won't reverse either.
Charge them both at the same time, in the proper chemistry chargers of course, and it's golden, works well. "AA" size 14500 LiIon with protect circuit is the key here.
It's a super easy mod to make in a 3-AA project box, tons of space for a switch, regulator, and atty connector with room to spare in the last AA spot.
It worked fine.
An "AA" size 14500 LiIon with protect circuit has less than 900 mah of usable power, and a cutoff when it's dead. It can't reverse, because at the cutoff it still has more voltage than a fully charged NiMh, and they're cheap on DX.
The Eneloop has closer to 1800 mah. It won't ever go dead before the LiIon does, so it won't reverse either.
Charge them both at the same time, in the proper chemistry chargers of course, and it's golden, works well. "AA" size 14500 LiIon with protect circuit is the key here.
It's a super easy mod to make in a 3-AA project box, tons of space for a switch, regulator, and atty connector with room to spare in the last AA spot.
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