Notices
Batteries & Chargers Nicads, Nickel Metal Hydride, Lithium, LiPoly, Chargers, Cyclers, etc...

Is the so-called "smart battery" really safe enough?

Old 08-21-2019, 01:40 AM
  #1  
Chamberlainr
Junior Member
Thread Starter
 
Chamberlainr's Avatar
 
Join Date: Aug 2019
Posts: 9
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Is the so-called "smart battery" really safe enough?

We have read many news about fire caused by drone battery. Some of them are due to battery overcharing, when a LiPo battery is overcharged, the anode of the battery becomes plated with lithium metal and the cathode produces carbon dioxide. The pressure inside the battery rises as more gas is produced until the outer skin of the LiPo bursts and vents gas. LiPo venting is usually accompanied by flames which leads to the entire battery destroying itself. Overcharging can be prevented by charging LiPo batteries to a maximum of 4.2 volts per cell (or 4.35V for lithium high voltage packs) and charging at a safe current setting.

Some due to over discharging. When quickly discharged in situations such as a drone race, a LiPo battery will heat up. If excess current is drawn from the battery causing it to overheat, gasses will form inside the battery. Like overcharging, if enough gas forms and the LiPo bursts, it will commonly vent with flames. If a LiPo is discharged below its stated C-rating, there should not usually be a safety issue (unless, as happens occasionally, LiPo manufacturers lie about the C-rating of their batteries).

I found some smart battery claiming it can prevent over-charging and over-discharging automatically, so does this mean it is really safe enough that we don't have to take precautions?
Chamberlainr is offline  
Old 08-21-2019, 03:22 PM
  #2  
init4fun
 
init4fun's Avatar
 
Join Date: May 2009
Posts: 3,357
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by Chamberlainr View Post
..I found some smart battery claiming it can prevent over-charging and over-discharging automatically, so does this mean it is really safe enough that we don't have to take precautions?
Can you show me some links of where you found the "smart battery" LIPO of which you speak ?
init4fun is offline  
Old 08-21-2019, 06:04 PM
  #3  
BobbyraMarquezr
Junior Member
 
Join Date: Aug 2019
Posts: 11
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by init4fun View Post
Can you show me some links of where you found the "smart battery" LIPO of which you speak ?
It is called MMC TI22000 smart battery and I browsed it around on other forums. I will PM you the link.
BobbyraMarquezr is offline  
Old 09-23-2019, 10:58 PM
  #4  
Bruces
Junior Member
 
Join Date: Sep 2019
Posts: 1
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I don't think there is an absolutely safe battery, but at least it is safer than other batteries
Bruces is offline  
Old 09-27-2019, 05:11 PM
  #5  
ticedoff8
 
Join Date: Mar 2011
Location: Morgan Hill, CA
Posts: 30
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

The MMC TI22000 is a commercial drone battery and not a hobby battery. It requires as specific charger that matches the battery.
ticedoff8 is online now  
Old 10-04-2019, 02:34 PM
  #6  
AllModesR/C
 
Join Date: Sep 2014
Posts: 424
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Never mind, it just needed to rest for a while.

Last edited by AllModesR/C; 10-04-2019 at 05:13 PM.
AllModesR/C is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.