Welcome, Guest. Please login or register.
April 17, 2024, 10:00:22 PM

Login with username, password and session length

Recent Topics

[Today at 09:12:10 PM]

[Today at 06:04:24 PM]

by jed
[Today at 04:56:16 PM]

by PNW
[Today at 03:57:54 PM]

[Today at 09:43:36 AM]

[Today at 08:01:37 AM]

[April 16, 2024, 10:04:37 AM]

[April 15, 2024, 02:48:20 PM]

by jed
[April 12, 2024, 06:45:30 PM]

[April 11, 2024, 10:21:26 AM]

[April 04, 2024, 07:06:23 AM]

[April 03, 2024, 11:59:14 AM]

[April 03, 2024, 10:23:24 AM]

[April 02, 2024, 09:39:30 AM]

[April 01, 2024, 12:06:53 PM]

Picture Of The Month



Swede P's first AOTY fish is a bruiser!

Topic: LiFePO4 chargers  (Read 2327 times)

0 Members and 1 Guest are viewing this topic.

  • Location: Warrenton, OR
  • Date Registered: Oct 2009
  • Posts: 399
Just a quick bit of info on lithium battery chargers......I maintain the 36V DC powered scooters at WAAAM in Hood River. About 4 years ago we bought 3, 12V DC lithium batteries on a trial basis to see if we could get more run time(series connected)......found out in about 2 months the 36 V DC chargers that came with the scooters to maintain the SLA batteries did not charge to the voltage needed......each 12 V lithium battery needs to be charged closer to 14.5 V DC ...range is 14 to 15 V DC.
I purchased  a 42 V DC charger for $18 and it solved the problem to extend the run time.


Saltydog0

  • Perch
  • ***
  • Location: NW
  • Date Registered: May 2012
  • Posts: 94
I've used the Dakota 23 Ah LiFePO4 and their 3A charger.  I love it.  No more worries about my crapy batteries not being able to handle the power consumption of my Raymarine Dragonfly Pro 7.


Tinker

  • Sturgeon
  • *******
  • Kevin
  • Location: 42.74°N 124.5°W
  • Date Registered: May 2013
  • Posts: 3304
Just a quick bit of info on lithium battery chargers......I maintain the 36V DC powered scooters at WAAAM in Hood River. About 4 years ago we bought 3, 12V DC lithium batteries on a trial basis to see if we could get more run time(series connected)......found out in about 2 months the 36 V DC chargers that came with the scooters to maintain the SLA batteries did not charge to the voltage needed......each 12 V lithium battery needs to be charged closer to 14.5 V DC ...range is 14 to 15 V DC.
I purchased  a 42 V DC charger for $18 and it solved the problem to extend the run time.

I'm not claiming to understand LiFePO4 batteries, but from what I've read, and remain skeptical about it for obvious reasons, a charger for lead-acid batteries does not work good for charging LiFePO4 batteries - and can damage them.

I've used the Dakota 23 Ah LiFePO4 and their 3A charger.  I love it.  No more worries about my crapy batteries not being able to handle the power consumption of my Raymarine Dragonfly Pro 7.

Thank you.  Most of the complaints about battery chargers were about that exact charger.  I don't know if you got lucky or the folks dong the complaining were using a forum to justify returning something simple so they could buy something else with lots of little lights and a bunch of buttons.  Appreciate the information. 
I expected the worst, but it was worse than I expected...


BigFishy

  • Rockfish
  • ****
  • Location: Clackamas
  • Date Registered: Nov 2020
  • Posts: 104
Building racing drones in the past we use different grade lithium battery chargers that general public might not be aware about. They are safer, more versatile/capable and relatively inexpensive but most require separate stand alone power supply. The most current ones can be the ultimate charger for everything in the household (with right adapters)
I built a 55Ah lithium battery for my kayak trolling motor and charge it at 15 Amps so it's ready for next day.
Below are few links.
https://www.getfpv.com/isdt-air8-500w-20a-1-8s-dc-smart-charger-w-battair-plug-ins.html

https://www.getfpv.com/toolkitrc-m9-600w-20a-1-8s-multi-function-dc-smart-balance-charger-w-voice-alerts.html
2021 Hobie Outback


 

anything