Comments on: Charge rate for NiMH batteries http://darkness.codefu.org/wordpress/2008/12/27/330 Thu, 11 Mar 2010 16:25:01 +0000 http://wordpress.org/?v=2.6.3 By: Bob Roberts http://darkness.codefu.org/wordpress/2008/12/27/330#comment-78582 Bob Roberts Thu, 26 Nov 2009 14:29:36 +0000 http://darkness.codefu.org/wordpress/?p=330#comment-78582 I have a question about the charging rate for the new 2300 mAh NiMH batteries I just purchased to replace the 1300 mAh battery pack that originally came in my portable radio. The new batteries are flat tops and came with solder tabs that I need for a battery pack I'm going to put together and install in the radio. The radio came with a wall charger that plugs into the radio and delivers a charge of 100 mA at 6 volts. In other words, I'm stuck with this charger and need to know if I'll be damaging, or shortening the life of the batteries, charging them at such a slow rate. I ask this question because I read somewhere that NiMH batteries don't like long charges. By the way, I recently purchased the Maha MH-C9000 -- which I have not used yet -- in order to condition my new batteries. B. Roberts I have a question about the charging rate for the new 2300 mAh NiMH batteries I just purchased to replace the 1300 mAh battery pack that originally came in my portable radio. The new batteries are flat tops and came with solder tabs that I need for a battery pack I’m going to put together and install in the radio. The radio came with a wall charger that plugs into the radio and delivers a charge of 100 mA at 6 volts.

In other words, I’m stuck with this charger and need to know if I’ll be damaging, or shortening the life of the batteries, charging them at such a slow rate. I ask this question because I read somewhere that NiMH batteries don’t like long charges. By the way, I recently purchased the Maha MH-C9000 — which I have not used yet — in order to condition my new batteries.

B. Roberts

]]> By: Servaas Products http://darkness.codefu.org/wordpress/2008/12/27/330#comment-61797 Servaas Products Sun, 28 Dec 2008 03:14:25 +0000 http://darkness.codefu.org/wordpress/?p=330#comment-61797 1C is a safe charge rate for any NiMH battery, though it is quite fast. My philosophy is, if you have the time to charge at 0.5C, then your batteries will likely live for more cycles, and if you are in a hurry, then 1C is a good rate to get the job done quickly. (Servaas Products are the Australian Distributor for Maha Powerex) 1C is a safe charge rate for any NiMH battery, though it is quite fast. My philosophy is, if you have the time to charge at 0.5C, then your batteries will likely live for more cycles, and if you are in a hurry, then 1C is a good rate to get the job done quickly.

(Servaas Products are the Australian Distributor for Maha Powerex)

]]>