Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 01-05-2020, 09:25   #1
Registered User
 
zboss's Avatar

Join Date: Sep 2011
Location: On a boat
Boat: 1987 Cabo Rico 38 #117
Posts: 3,959
Lithium Portable Lithium Battery Pack Charging

Question about charging of those lithium portable battery banks vs. charging your boat lithiums...

I noticed that the reviews for portable lithium based battery storage systems (like the GoalZero Yeti) that the charging starts out quickly with a lot of amps going in but gradually reduces like you would see happening with a lead acid battery.

I always thought that lithium batteries could be charged at their maximum rating until full and there would not be a trail off in acceptance. For example, Battleborn says that their batteries will take up to 100A (+/-5%) until the BMS signals a "short circuit".

Is this incorrect?

- z
zboss is offline   Reply With Quote
Old 01-05-2020, 10:01   #2
Registered User

Join Date: Apr 2020
Posts: 14
Re: Lithium Portable Lithium Battery Pack Charging

Hi, I would think it's down to the chemical makeup of the battery and also what the bms is programmed to do along with the controller that is doing the actual charging....

Will prowse on youtube did a strip down and review on the goal zero. Might be worth a watch?
__________________
Jack of all master of none!

Instagram Culwatty
Culwatty is offline   Reply With Quote
Old 01-05-2020, 10:33   #3
Registered User
 
Dsanduril's Avatar

Join Date: Aug 2011
Location: Petersburg, AK
Boat: Outremer 50S
Posts: 2,986
Re: Lithium Portable Lithium Battery Pack Charging

It really depends on the specific lithium chemistry, and whether you're trying to operate in the 100% charge range or using a PSOC regime that stops at 80-95% capacity. If the latter then you'll see fast charging with a stop while still at relatively high current, if the latter there is a tail just as with LA, although generally much shorter.

The GoalZero is Li-NMC, a "typical" full charge profile looks like this:



Most users on CF deal with LiFePO4 chemistries and most subscribe to the "don't get to 100% regularly" charging regime.
Dsanduril is offline   Reply With Quote
Reply

Tags
battery, charging

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
$2500 2000 amp hour lithium battery pack jgw50 Electrical: Batteries, Generators & Solar 20 17-11-2019 09:52
What should a stack pack/sail pack/ lazy bag cost? mrybas Deck hardware: Rigging, Sails & Hoisting 29 04-05-2019 15:27
For Sale: Lithium Battery 400ah 3.2v cells - 12.8v Pack WaywardCargo General Classifieds (no boats) 8 19-06-2018 06:46

Advertise Here


All times are GMT -7. The time now is 19:19.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.