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How much punishment can LiPOs take?
- Thread starter Hyster
- Start date
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onder2:
- Messages
- 9,066
- Reaction score
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- Location
- Baton Rouge, LA
- RC Driving Style
- Bashing
- Racing
Ok, I'm sorry, i've been trying to stay on RC topic, cuz apparently i piss people off. but you have got to watch what you say while you have that avatar........
That is what i keep mine in. I just wanted to make sure I was doing all I could.
Hey Rob... do you charge your cells religiously? I try and put a charge on mine before storing... but with the kids and homework... don't always have the time to pull them off the shelf once a month to top them off. Could that be the reason I blew that cell? Thanks
Tom
Ok, I'm sorry, i've been trying to stay on RC topic, cuz apparently i piss people off. but you have got to watch what you say while you have that avatar........
Right!! Damn Cardinals! One of these days Ohio State will actually win a National Title... and when they do!! Look out Smaxxin!
- Messages
- 9,066
- Reaction score
- 291
- Points
- 823
- Location
- Baton Rouge, LA
- RC Driving Style
- Bashing
- Racing
Could that be the reason I blew that cell?
Again....... priceless....
The best way to store a LIPO, for > than 1 month anyway, is to charge/discharge to 3.8v/call and store them at 35 degrees F (fridge).
The two biggest risks of a LIPO are damage and cell imbalance.
Cell imbalance occurs when the voltage of at least one cell drops below another. This causes the entire pack to show a voltage that does not represent the cell with the highest voltage in the pack. A non-balancing charger will charge the pack as a whole until it reaches 4.2V/Cell, effectively overcharging the high cell and damaging or venting the pack. This is why it's so important to use a balancing charger, which will charge each cell individually.
Damage is another issue. It can be physically evident or not. If a cell is dented, some people just keep en eye on it. Maybe they mark it, maybe they store and charge it in a can; it depends. Internal damage can sometimes be evident by how the cell charges or discharges, or not. The most common causes of internal damage are overcharging or, more likely, letting a cell drop below 3.2V.
This is why low voltage cutoffs, balancing chargers and diligence are all important parts of LIPO safety.
This is really the only thing I have a clue about, by the way, and it comes from my years of using LIPOs on airplanes. I'm seriously clueless with everything else, so I'll really be appreciating your help as I start with a barrage of dumb questions.
The two biggest risks of a LIPO are damage and cell imbalance.
Cell imbalance occurs when the voltage of at least one cell drops below another. This causes the entire pack to show a voltage that does not represent the cell with the highest voltage in the pack. A non-balancing charger will charge the pack as a whole until it reaches 4.2V/Cell, effectively overcharging the high cell and damaging or venting the pack. This is why it's so important to use a balancing charger, which will charge each cell individually.
Damage is another issue. It can be physically evident or not. If a cell is dented, some people just keep en eye on it. Maybe they mark it, maybe they store and charge it in a can; it depends. Internal damage can sometimes be evident by how the cell charges or discharges, or not. The most common causes of internal damage are overcharging or, more likely, letting a cell drop below 3.2V.
This is why low voltage cutoffs, balancing chargers and diligence are all important parts of LIPO safety.
This is really the only thing I have a clue about, by the way, and it comes from my years of using LIPOs on airplanes. I'm seriously clueless with everything else, so I'll really be appreciating your help as I start with a barrage of dumb questions.
- Messages
- 9,066
- Reaction score
- 291
- Points
- 823
- Location
- Baton Rouge, LA
- RC Driving Style
- Bashing
- Racing
Its apparently what i do. lol.
