FF Battery question (ryobi Lithium Ion?)

[Harry Hill]

Originally Posted by jruiz

I don't even know why I'm wasting my time with this. This is a LIPO battery from my garage

This is a volt meter on the same 3 cell LIPO battery that I just charged. 12.5/3=4.16V


Here's a datasheet for a random LIPO cell with the charge voltage highlighted


If you somehow discovered a 4.7-5V lithium rechargeable battery, hurry up and patent it. Everyone in the battery industry knows that the electrolytes in the batteries aren't stable at that high of a voltage. What happens is that the electrolyte breaks down and starts forming CO2. Probably what happened to you guys

https://www.arl.army.mil/wp-content/...trolyteAdd.pdf

JR, I owe you an apology, my batteries are not charging to 4.7, instead they are charging to 4.2 volts. That being said if you are using the proper charger you cannot over charge LiPo batteries when using the balance charger. My LiIo batteries charge to 3.3 volts per cell and a two cell will show 6.7 volts when freshly charged. The houses and cars burning are not because of overcharging LiPo batteries in most cases, it is from damaged batteries from a crash or some other damage. The battery in the picture shorted to my pickup bed in transport.

[jruiz]

Originally Posted by Harry Hill

JR, I owe you an apology, my batteries are not charging to 4.7, instead they are charging to 4.2 volts. That being said if you are using the proper charger you cannot over charge LiPo batteries when using the balance charger. My LiIo batteries charge to 3.3 volts per cell and a two cell will show 6.7 volts when freshly charged. The houses and cars burning are not because of overcharging LiPo batteries in most cases, it is from damaged batteries from a crash or some other damage. The battery in the picture shorted to my pickup bed in transport.

Do your "LiIo" say anything about LFP(Lithium Iron Phosphate) or LTO(Lithium Titanate)on them? Easier yet, send a link of what have. I'm willing to bet they're either LFP or LTO batteries which are a sublcass of lithium ion. Which can also be packaged as a LiPo battery.