Soshine SC-S2 temperature.

Batteries and Chargers Chargers
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Hi everyone , this is my first post on BudgetLightForum … Up to now , I have been posting regularly on CPF.

I use a Soshine SC-S2 or a Trustfire TR-001 for my 18650’s … I also have a Soshine SC-S1min for the smaller Li-Ions.

I bought a couple of Xtar (Sanyo) protected 2600mAh 18650’s and decided to charge them with my Soshine charger … Up to now , I had been using Ultrafire batteries (both protected and unprotected) and never had any particularly high charger or PSU temperatures.

Anyway , I checked the temperatures of the charger , PSU and batteries during the charging of my new batteries … At its highest (after about one hour) , both the PSU and the charger reached 59C (138F) though the batteries were barely warm and did not exceed about 39C (about my body temperature).

I decided to fan-cool my next charging cycle … I used two new Panasonic 3100mAh batteries … I stood the charger on top of a small circular fan unit which is designed to cool small laptops … It has folding arms that I left folded … To allow better cooling , I stood the cooler on a couple of 2” blocks just to allow a better flow of air … It worked well.

The uncooled PSU still went up to 59C , but the Charger only went up to 41.5C maximum … The batteries were 39C maximum … After two hours , the battery temperatures were 29.5C and 29.0C , Charger was 28.5C and the PSU was 52.5C.

The cells were charged after another one hour (approx) and the battery temperatures were 28C , charger was 28.5C and the PSU was 48.5C … The batteries both were 4.24V … A little bit high , but within my limits.

So , less than £4 (including postage) spent on a USB fan made a huge difference in the temperature of the charger , though the batteries were the same temperature as in the uncooled charge.

The Soshine has a 12V 1,5A PSU … I’m wondering is a more substantial PSU would run cooler than this one … On the other hand , I could fan-cool this one with a small USB desk fan which would be a lot cheaper.

Even though the PSU reached 59C , it was not too hot to hold.

.

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Welcome to BLF!

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Welcome to BLF march.brown

Interesting observations and tests. Perhaps you should contact Soshine??

Have fun here - I know I do ;-)

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We met back on the Fusion36 thread on CPF back in the day .

Good to see you here .

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Please enjoy your time here, march.brown!

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G’day mate!

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Just as a matter of interest , I fitted a couple of 5 watt 12V halogen lights into the top of a small glass-fronted display cabinet and used a 230V AC to 12V DC 18 Watt regulated PSU designed for the job … Nice little (cheap) unobtrusive white plastic unit … It stated on it that the maximum ambient temperature should be 40C and that the maximum case temperature should be 80C … These units therefore were apparently OK to run hot (’cos it said so on the label) … If it said 80C on the label , I assume that even then there is (maybe) a safety margin on top of that … I was only running it at a total of ten watts but the PSU temperature was still (I thought) quite high at 52.5C … Perhaps the 12V PSU that powers my Soshine charger is within its permitted working temperature as it runs at 59C during the CC part of the charge , dropping to 48.5C at the end of charge.

It just seems “cruel” to run solid-state electronic equipment at these high temperatures.
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Cooling Fan for my Soshine charger.

http://www.ebay.co.uk/itm/230827028089?ssPageName=STRK:MEWNX:IT&\_trksid=…

This is what I used to cool my Soshine battery charger … You need to stand the fan unit on two pieces of 2” square timber (about 4” long) , to lift it off the desk , so that there is a better flow of air into the fan … The charger stands easily on top of the fan unit … It works well.
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I always enjoyed your posts on CPF. I know you are a big SolarForce fan. Welcome.

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Welcome to the BLF, march.brown !