Welcome, Guest. Please login or register.
March 29, 2024, 05:29:31 AM

Login with username, password and session length

Recent Topics

[March 27, 2024, 12:49:04 PM]

[March 27, 2024, 07:37:59 AM]

[March 26, 2024, 09:10:45 PM]

[March 25, 2024, 05:15:36 PM]

by Spot
[March 25, 2024, 02:39:54 PM]

by PNW
[March 24, 2024, 07:14:07 PM]

[March 23, 2024, 10:59:04 PM]

[March 21, 2024, 06:23:10 AM]

[March 17, 2024, 06:42:23 PM]

[March 17, 2024, 08:44:53 AM]

[March 15, 2024, 06:45:09 PM]

[March 10, 2024, 05:55:18 PM]

[March 10, 2024, 11:20:08 AM]

[February 29, 2024, 07:05:43 AM]

[February 26, 2024, 01:31:23 PM]

Picture Of The Month



SD2OR with a trophy fall walleye

Topic: LiFePO4 chargers  (Read 2299 times)

0 Members and 1 Guest are viewing this topic.

  • Location: Hood River
  • 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: 103
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