New bench power supply

[shavermcspud]

Thought some of you might like a look at the bench supply I purchased to balance my Lifepo4, nice colour display and only $60 / £55

Its app and PC controllable which means you can monitor remotely, has built in wifi and has battery temperature probes and provides graphing and data logging
Also has a specific battery charge output as well as bench supply output.
Voltage input range 10 - 70v and 5- 40 amps with the same variable output.



PC desktop app


So far with my fluke meter its spot on to the millivolt accuracy with the output under load.

 

[snoobler]

What is the power limit (doubt it can do 2800W), and would you provide a link?

With a lower limit of 10V, I assume you didn't balance individual cells. What did you do?

 

[shavermcspud]

What is the power limit (doubt it can do 2800W), and would you provide a link?

With a lower limit of 10V, I assume you didn't balance individual cells. What did you do?

Sorry I mistyped what i meant, voltage input range is 10v - 70v as it requires an external power supply feed, I'm using a laptop power supply rated at 19.6v 6amps for the input, the output range is 0.05v to 70v, so its very usable to balance individual cells and chart their progress

Specs


Input voltage: 10-70.00V
Output voltage: 0-60.00V
Output current: 0-6.000A
Output power: 0-360.0W
Capacity measurement range: 0-9999.99Ah
Energy measurement range: 0-9999.99Wh
External sensor Temperature detection range: -10°~100°C
link to amazon is here https://www.amazon.co.uk/gp/product/B0813L66QX/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

 

[snoobler]

Input voltage: 6-70.00V
Output voltage: 0-60.00V
Output current: 0-6.000A
Output power: 0-360.0W
Capacity measurement range: 0-9999.99Ah
Energy measurement range: 0-9999.99Wh
External sensor Temperature detection range: -10°~100°C

Did you also typo 40A output?

And there's the 360W power limit, so it can push 6.0A at its peak current. Nice. Counting input current is awesome too. Wifi/computer interface puts it in the borderline orgasmic category.

That's a very capable unit for the price. Wish I had found this when I bought my 30V/10A unit for about the same price.

 

[Gazoo]

Nice find. I have seen those on Aliexpress. There are different models. Wasn't sure how accurate they are but now we know.

 

[RCinFLA]

They are DC to DC buck converter modules. You supply your own 70v input power supply. Doesn't have to be a 70v input supply but must have about 10v overhead above desired highest output voltage.

RD6006 is 60v/6A. There is a newer one RD6012 that does 60v/12A.

They are switching buck downconverter so they have a lot of switching noise but fine for battery charging.

 

[shavermcspud]

Input voltage: 6-70.00V
Output voltage: 0-60.00V
Output current: 0-6.000A
Output power: 0-360.0W
Capacity measurement range: 0-9999.99Ah
Energy measurement range: 0-9999.99Wh
External sensor Temperature detection range: -10°~100°C

Did you also typo 40A output?

And there's the 360W power limit, so it can push 6.0A at its peak current. Nice. Counting input current is awesome too. Wifi/computer interface puts it in the borderline orgasmic category.

That's a very capable unit for the price. Wish I had found this when I bought my 30V/10A unit for about the same price.

I think I was half asleep when I wrote the initial post.

 

[RCinFLA]

PS, I have read the PC app is somewhat unreliable so don't just trust the settings from PC is actually showing up on power supply.

 

[Dzl]

Review-ish videos:

 

[FilterGuy]

Thought some of you might like a look at the bench supply I purchased to balance my Lifepo4, nice colour display and only $60 / £55

Its app and PC controllable which means you can monitor remotely, has built in wifi and has battery temperature probes and provides graphing and data logging
Also has a specific battery charge output as well as bench supply output.
Voltage input range 10 - 70v and 5- 40 amps with the same variable output.

View attachment 18841

PC desktop app
View attachment 18842

So far with my fluke meter its spot on to the millivolt accuracy with the output under load.

What do you use to supply the 70V DC input?

 

[Michael B Caro]

What do you use to supply the 70V DC input?

I am still debating how to supply the input to the ISDT Q8 Smart charger I bought.

 

[shavermcspud]

What do you use to supply the 70V DC input?

I'm using a 19v Pc power supply, I don't need to go to 70v

 

[Dzl]

What do you use to supply the 70V DC input?

They sell an 800W 70v PSU on their aliexpress store for ~$60. The case looks like it would accomodate a meanwell style power supply or if you are okay with <20v a laptop style power brick would do the trick.

 

[FilterGuy]

Assuming the buck supply can operate with an input 5V above the output:

• A 19V PC power supply would probably work OK if you are charging a 12V system.
• You would want something close to a 35V supply for a 24 volt system (29.2V+5V)
• You would probably need something around 64 volt input (58.4+5)

 

[RCinFLA]

Most people use a flyback switching power supply for the 70v input.

You can buy the buck module, 70v 12A source switching power supply, and metal case for about $150. All screws and hookup wiring included. You have to provide your own test equipment plug in AC cord. Takes about 45 mins to hour to put together.

Gives the ability to charge a 16s 48v stack of batteries.

 

[FilterGuy]

You can buy the buck module, 70v 12A source switching power supply, and metal case for about $150.

Is it a kit or are you talking about buying components and putting it all together yourself?

 

[RCinFLA]

Is it a kit or are you talking about buying components and putting it all together yourself?

They are individual parts but they are typically grouped together on same ad page.

Total: US$146.53​ RD6012 RD6012W Digital Power Supply Case S12A Only Metal Housing Shell For Voltage Converter $35 X1​ RD6012 RD6012W S-800-70V 11.4A Switching Power Supply AC/DC Power Transformer Has Sufficient Power 90-132VAC/180-264VAC to DC70V $56 X1​ RD6012 RD6012W USB WiFi DC-DC Voltage Current Step Down Power Supply Module Buck Voltage Converter Voltmeter 60V 12A $53 Type: RD6012-W X1​ Order Time： 2020-07-18 12:01:37​ Shipping Method： USA Priority Mail​

 

[Dzl]

Is it a kit or are you talking about buying components and putting it all together yourself?

If you look at the Aliexpress link I posted above you can see the different components on that page. You can buy as a kit (apparently the kit ships from a US warehouse which is a plus), or you can buy the individual components.

edit: https://www.aliexpress.com/item/4001053200176.html

 

[RCinFLA]

Just looked up Bangood invoice. Prices fluxuate.

In mid-July I paid:

product ID: 1687955, RD6012W Metal case $29.99

product ID 1689167, RD6012 S-800-70v 11.4 Amp Switching power supply $42.99

product ID 1687705, RC6012W DC-DC voltage curren t step down module buck voltage converter voltmeter $59.99

$10.90 priority shipping
$2.66 insurance

Total $146.53

 

[ArthurEld]

I bought the kit with 70V power supply and case at aliexpress - https://www.aliexpress.com/item/4001053200176.html

It was $144-$12(coupon) free shipping from US $132 I used Rakuten too for a 2.75% rebate. lol