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HomeAircraftHelicopterMain Discussion › What charger for this PS
11-29-2017 06:36 PM  6 months agoPost 1
HeliOCD

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San Diego, CA

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I have a Lambda power supply 12 volt 125 amp (see link)

https://www.mouser.com/ProductDetai...pzSi8tIp36E8%3D

I would like to buy a iSDT charger to use with the PS, but am not sure which one would best. Any help would be appreciated.

http://www.isdt.co/category/product

Its all earth!

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11-29-2017 07:02 PM  6 months agoPost 2
Richardmid1

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Leeds, England

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What packs will you be charging?

Most high power chargers require at least 24v input to get the full charge wattage out of them. Ideally you need 2 power supplies wired in series to get 24v.

60% of the time, it works every time!

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11-29-2017 08:37 PM  6 months agoPost 3
HeliOCD

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San Diego, CA

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Richardmid1
What packs will you be charging?

Most high power chargers require at least 24v input to get the full charge wattage out of them. Ideally you need 2 power supplies wired in series to get 24v.
I will be charging 6s 5000 mah batterys..
I also have this power supply (see link)

http://www.newark.com/tdk-lambda/sw...kv=s5pISI2kY_dc|pcrid|219882670054|plid||kword|sws600l-24|match|p&CMP=KNC-GUSA-GEN-SKU-MDC-NF&gclid=Cj0KCQiA0vnQBRDmARIsAEL0M1k-90IUQrUk6W6zTVOXXidLr5DgFEYhTWc6-s_wj9o197WrimHhiCUaAklbEALw_wcB

I was thinking about the iSDT T8
Any input would be appreciated.
Thanks.

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11-29-2017 10:21 PM  6 months agoPost 4
ICUR1-2

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Ottawa, Ontario

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Your PS is capable of 1500 watts out.
The size of charger is irrelevant . It is the rate at which you can draw power.

Determine your battery needs first the choose a charger . And then a power supply.

Convert to watts when choosing

Your 6s5000 charging at 1C
22.8v x 5 amps requires 114 watts per pack
If you wanted to charge at 3 c then you need 342 watts capable charger.plus 20% f for the power supply.
When choosing a charger read the input voltage and watts out.plus a 20% or more for power supply.

12volts in is ideal as you can charge from a car battery.

spending time, paying attention

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11-29-2017 10:42 PM  6 months agoPost 5
HeliOCD

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San Diego, CA

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Thank you...

Its all earth!

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11-30-2017 02:02 AM  6 months agoPost 6
EEngineer

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TX

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Those are some very nice power supplies....very high quality.

The spec data for the HWS-1500 says it's 82% efficient with 120VAC input.

It also says that you can adjust the output voltage between 9.6V and 14.4V.

So you could adjust the output voltage to 14.4V for your charger.

Did you buy them new from Mouser?

Just curious.

Logo 600SXs, 800XX, TDR IIs

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11-30-2017 03:26 AM  6 months agoPost 7
HeliOCD

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San Diego, CA

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I traded for a couple solar panels..
I see that its actually a SWS1000L-24 and has a label reading Engineering Sample. Is it better to run the iSDT at 12 or 24 volts even if the 24 volt PS has less amps then the 12 volt one?

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11-30-2017 04:12 AM  6 months agoPost 8
ICUR1-2

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Ottawa, Ontario

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It's all about wattage V x Amps.
Your watts in needs to be higher than watts out. By at least 20%

spending time, paying attention

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11-30-2017 04:16 AM  6 months agoPost 9
pctomlin

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Texas

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It is typically better to run the higher input voltage. I haven't seen a charger yet whose output is not halved due to 12V input versus the 24V input. That 12V input needs to be made 25.2V in the charger somehow to charge 6S batteries.

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11-30-2017 05:20 AM  6 months agoPost 10
EEngineer

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TX

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It's all about wattage V x Amps.
Yeah?

Try charging a large pack off of your car battery and see how long it takes.....

pctomlin is correct....

The charger must convert 12V to 25V for larger packs....

Your analysis fails to take into account the voltage "up conversion" to charge a pack whose voltage is greater than the charger's input voltage.

Is that informative enough for you?.....

Logo 600SXs, 800XX, TDR IIs

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11-30-2017 06:50 AM  6 months agoPost 11
HeliOCD

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San Diego, CA

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pctomlin
It is typically better to run the higher input voltage. I haven't seen a charger yet whose output is not halved due to 12V input versus the 24V input. That 12V input needs to be made 25.2V in the charger somehow to charge 6S batteries.
Good point.

Its all earth!

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11-30-2017 06:51 AM  6 months agoPost 12
HeliOCD

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San Diego, CA

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EEngineer
It's all about wattage V x Amps.
Yeah?

Try charging a large pack off of your car battery and see how long it takes.....

pctomlin is correct....

The charger must convert 12V to 25V for larger packs....

Your analysis fails to take into account the voltage "up conversion" to charge a pack whose voltage is greater than the charger's input voltage.

Is that informative enough for you?.....
Yes thanks guys..

Its all earth!

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