R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Thread Tools Search this Thread
Old 02-21-2003, 12:11 AM   #1
Tech Regular
fasterdanu's Avatar
Join Date: Dec 2002
Location: the bat cave
Posts: 428
Default voltage threshold

can somone make this clear to me and give me a straight answer i'v alway's been just slightly unsure about this.
there is very mixed feeling's about setting this feture on your charger i'd like to hear what u set it at and why
fasterdanu is offline   Reply With Quote
Old 02-21-2003, 02:04 AM   #2
Tech Elite
Cole Trickle's Avatar
Join Date: Sep 2001
Location: Denmark / Europe
Posts: 2,571

Depends on battery type and which things you want the most: battery life, runtime or speed.

Here are some tips:

Schumacher Mi5 - Sanwa MT-4 / RX-462 / KO Propo PDS-2123 - Nosram 5600 X-treme Saddle Pack - LRP SPX Zero/X12 17,5 - Nosram Stealth Touch Evolution - MAAS SPS 9250
Cole Trickle is offline   Reply With Quote
Old 02-21-2003, 04:18 AM   #3
Tech Initiate
Join Date: Jan 2003
Location: Netherlands
Posts: 27

When using NICad or NIMH battery's do not go below 0.85V per Cell or you will distroy them.
In general 0.9 V per cell will do, so for a 6Cell pack this is 0.9Vx6=5.4V.

If you use higher voltage settings like 1V per cell this will not make them compleet emty and you can get memory effects with the NICAD's.

Greatz Whacky.
Whacky is offline   Reply With Quote
Old 02-21-2003, 08:20 AM   #4
Tech Initiate
Telengard's Avatar
Join Date: Dec 2002
Location: Oklahoma
Posts: 26

Voltage Threshold: A user selectable feature used in most of the newer chargers whereby the user can set the amount of voltage change that is necessary in order for the charger to detect a "Peak" in a battery pack. As cells charge, the pack voltage will increase until fully charged. At this time, the voltage on the pack will start to drop. When the voltage drops by the amount set in the Voltage Threshold setting, the charger detects this as a "Peak" and charging is terminated. This is an especially useful feature to prevent overcharging cells. The higher the Voltage Threshold setting is, the hotter the cells get. High cell temperature is detrimental to the overall longevity of the battery pack. In general, NiCd packs can charge and peak normally using a 12mV/cell setting, while NiMH packs (3000mAh sub C's) require a much lower setting of 4mV/cell.
Telengard is offline   Reply With Quote
Old 02-21-2003, 04:51 PM   #5
Tech Regular
ausracer's Avatar
Join Date: Dec 2001
Posts: 276

telengard gave some good places to start. basically with nimh just adjust it for how hot your packs get, if they coming off hot not warm then lower it a mv.
ausracer is offline   Reply With Quote
Old 02-22-2003, 12:59 AM   #6
Tech Regular
fasterdanu's Avatar
Join Date: Dec 2002
Location: the bat cave
Posts: 428

i know how to use it and what it does what i wanted to know is why som guy's set it so high for nimah's and what it achievs some guy's say 1mv some 3-5mv so that's what i'm asking
fasterdanu is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
NiCD/NiMH Voltage vs Lipo Voltage bryanleec Radio and Electronics 10 02-06-2008 05:08 PM
Integy 16x5v6 discharge voltage threshold? Bob Nilsen Electric On-Road 2 04-03-2004 03:12 AM
Voltage Threshold? James Nguyen Electric On-Road 4 06-25-2002 02:24 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 10:54 AM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0