Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > Multi Rotor Support > Multirotor Motors, ESCs, , Batteries, Distribution boards, etc.


Multirotor Motors, ESCs, , Batteries, Distribution boards, etc. Multirotor Motors, ESCs, Batteries, Distribution boards, etc.


Reply
 
LinkBack Thread Tools Display Modes
Old 08-21-2019, 04:45 AM   #1 (permalink)
Registered Users
 

Join Date: Aug 2019
Location: Seattle
Default QUESTION ABOUT SO CALLED “SMART BATTERY”

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).

That is why I am supporting smart battery in terms of problem detection. Recently I went to a drone exhibition and got to know this samrt battery by MMC UAV. The battery claims to free yourself from safety precautions by adopting such functions like over-charge-and-discharge protection, voltage balance, over-current-and-voltage protection, self-discharge protection when inactive for long time, short-circuit protection and cell damage detection,etc.

MY QUESTION is whether this kind of so-called "SMART BATTERY" really that safe enough and still powers drones as the usual ones?
flyinger is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © Website Acquisitions Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1