Getting your moneys worth out of LiPos (or 'fun with LiPos )
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- RNinMunichBronze
Getting your moneys worth out of LiPos (or 'fun with LiPos )
Aha! My wandering memory🙄
But I certainly don't remember the 'coup de gras' (= fat kick).
Was that really to vent the last smoke?
Or to vent your frustration at a dud battery?😠💥
Did you boot it over the hedge into your neighbour's garden? 😉
😎😁
But I certainly don't remember the 'coup de gras' (= fat kick).
Was that really to vent the last smoke?
Or to vent your frustration at a dud battery?😠💥
Did you boot it over the hedge into your neighbour's garden? 😉
😎😁
Young at heart 😉 Slightly older in other places.😊 Cheers Doug
Getting your moneys worth out of LiPos (or 'fun with LiPos )
Re garden fork,- that comes after the salt water in the bucket discharge Doug,- also a 6" nail through them as a final coup de gras helps release any stubborn smoke (a final nail in the coffin so to speak.)
JB
JB
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Getting your moneys worth out of LiPos (or 'fun with LiPos )
Excellent recycling JB👍
I have a 4S which arrived with one cell DOA.
I shall recycle it as you described. As I have also done with NIMH batteries occasionally
I guess that you, in your usual style, poke a garden fork through the dud cell and chuck it in a bucket of water!😮
Cheers, Doug😎
I have a 4S which arrived with one cell DOA.
I shall recycle it as you described. As I have also done with NIMH batteries occasionally
I guess that you, in your usual style, poke a garden fork through the dud cell and chuck it in a bucket of water!😮
Cheers, Doug😎
Young at heart 😉 Slightly older in other places.😊 Cheers Doug
Getting your moneys worth out of LiPos (or 'fun with LiPos )
Thought I'd mention this, as I found something interesting when 'recycling' some old HK 'zippy' LiPo batteries with 1 or 2 dud cells a few months ago. When I stripped the covering off and separated the cells, I found that the manufacturing date was 2 years previous to me buying them from HK. Probably explains why I always had problems with their batteries dropping a cell when almost 'new' when using them in planes.
I recycled a 5s, 3000mah, a couple of 4s 3000mah and a 3s 2200mah battery and these cells are still good after 15yrs +. There must be millions of perfectly useful cells thrown away every year because people are scared of LiPos and not confident to reuse cells. If you check the internal resistance of the cells and only remove the good ones, you can save quite a bit of money.
I don't recommend trying this unless you are 100% confident in working with LiPos. The main thing is just being extremely careful when separating the cells, (working outside away from combustibles and using a thin plastic or wood spatula to gently pry them apart,-never use knives!) Best to storage charge if possible before you start to lower the voltage. Cut any cell connections one at a time being careful not to short anything, when done check polarity of the good cells, and solder on new leads (with plug type to suit) quickly with a good soldering iron without heating the terminals too much. Note- Terminals in some brands are alloy and can't be soldered, any with copper terminals can.
You can just charge single cells as normal, but you'll obviously have no balance lead,- just set the capacity/time and charge around 1.5A.
You can also make batteries with fewer cells out of duds (eg if 1 cell of a 4 cell is bad but the others are good) but this is a bit trickier as you have to redo the wiring pattern on the balance lead (sometimes the main leads depending on how they are wired) and change the balance plug, . This is easier if an outside cell is the dud one.
If you can do this successfully with a single cell, you can have a useful battery which is ideal for powering things requiring around 4v, and a number of LEDs, using small cheap voltage regulators to control the voltage/brightness within the LEDs range. If you need to reduce a particular LEDs voltage you can add a resistor to balance the brightness (eg red and green)
Not recommended for beginners 🤓⚡💥🔥
JB
I recycled a 5s, 3000mah, a couple of 4s 3000mah and a 3s 2200mah battery and these cells are still good after 15yrs +. There must be millions of perfectly useful cells thrown away every year because people are scared of LiPos and not confident to reuse cells. If you check the internal resistance of the cells and only remove the good ones, you can save quite a bit of money.
I don't recommend trying this unless you are 100% confident in working with LiPos. The main thing is just being extremely careful when separating the cells, (working outside away from combustibles and using a thin plastic or wood spatula to gently pry them apart,-never use knives!) Best to storage charge if possible before you start to lower the voltage. Cut any cell connections one at a time being careful not to short anything, when done check polarity of the good cells, and solder on new leads (with plug type to suit) quickly with a good soldering iron without heating the terminals too much. Note- Terminals in some brands are alloy and can't be soldered, any with copper terminals can.
You can just charge single cells as normal, but you'll obviously have no balance lead,- just set the capacity/time and charge around 1.5A.
You can also make batteries with fewer cells out of duds (eg if 1 cell of a 4 cell is bad but the others are good) but this is a bit trickier as you have to redo the wiring pattern on the balance lead (sometimes the main leads depending on how they are wired) and change the balance plug, . This is easier if an outside cell is the dud one.
If you can do this successfully with a single cell, you can have a useful battery which is ideal for powering things requiring around 4v, and a number of LEDs, using small cheap voltage regulators to control the voltage/brightness within the LEDs range. If you need to reduce a particular LEDs voltage you can add a resistor to balance the brightness (eg red and green)
Not recommended for beginners 🤓⚡💥🔥
JB
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