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- Path: sparky!uunet!ulowell!news.bbn.com!news.bbn.com!jmoonan
- From: jmoonan@ccv1.bbn.com (John Moonan)
- Newsgroups: rec.models.rc
- Subject: Re: SCR vs. SCE?
- Date: 27 Jan 93 14:07:28
- Organization: BBN Communications, Cambridge, MA
- Lines: 30
- Message-ID: <JMOONAN.93Jan27140728@ccv1.bbn.com>
- References: <AfNORVO00YUo1_IgEC@andrew.cmu.edu>
- NNTP-Posting-Host: ccv1.bbn.com
- In-reply-to: cb1p+@andrew.cmu.edu's message of 26 Jan 93 21:04:33 GMT
- To: cb1p+@andrew.cmu.edu
-
- The difference between SCR and SCE NiCad batteries:
-
- The original Sanyo sub-C NiCad batteries were refered to as SC cells.
- They are call sub-C as they were the same capacity as the current C Cells but
- were somewhat smaller. These batteries had a capacity of 1200 mAh. Later,
- Sanyo brought out an improved cell that was more rugged, had somewhat higher
- output voltage and capacity, first 1400 mAh and later 1700 mAh, and could be
- charged at high rates, these were called SCR cells (the R stood for rapid
- charge). Sanyo also brought out an improved cell that had a larger increase
- in capacity, first 1500 mAh and later 1700 mAh, these were called SCE cells
- (the E stood for Extra), however, these cells could not be charged as rapidly
- as the SCRs and were only supposed to be charge once a week. The idea was that
- the SCRs were used where you needed rapid recharge, multiple recharges per day,
- short duration, etc. The SCEs were used where a long discharge time was needed
- at the expense of output voltage.
-
- In R/C car racing the SCRs were typically used for short sprint racing
- and the SCEs for longer races. However, now the capacity of the SCRs has
- caught up with the SCEs so a lot of this distinction has dissappeared. I know
- that my son, who is big into R/C car racing, used to use SCRs for 4 minute
- races and SCEs for 8 minute races but now has gone exclusively to the 1700 SCR
- cells.
-
- Hope this helps.
-
- --
-
- THANX, John Moonan
- SYSOP, 495th R/C Squadron
- Groton, MA
-