diy solar

diy solar

Can anyone recommend a good mid-range bench power supply.

Thanks again John - buying a China kit seemed scary at first - but with your vote & YT proceeded and achieved this - thank you for the contribution! Purchasing individually made this $128 very reasonable too!
 
Who wants to sell me their slightly used Riden when you're done? My battery purchase through Michael probably will not arrive until July . . . who knows. The more amps the better! I'll be configuring 2 x 48v each having 16s. Once I get these, I need to get 'r done, no poking around.
 
Just John said:
Riden D6018 would be my recommendation.
Click to expand...
Hi John - I finally rec'd my battery you mentioned and Riden Power Supply now up and running!

I'm having issue to connect Power Supply to WIFI, however.
I'm using IOS which seems to connect to IP address OK via the app, but the Power supply won't hook the IP address.
I put a note out to their tech supply (JoyIT) - so waiting to see what they say.

Did you happen to experience anything similar?

I like how much more function with this for not much more $$.
 
ePowerBank said:
Hi John - I finally rec'd my battery you mentioned and Riden Power Supply now up and running!

I'm having issue to connect Power Supply to WIFI, however.
I'm using IOS which seems to connect to IP address OK via the app, but the Power supply won't hook the IP address.
I put a note out to their tech supply (JoyIT) - so waiting to see what they say.

Did you happen to experience anything similar?

I like how much more function with this for not much more $$.
Click to expand...
I will be honest, I don't use the WiFi connection but rather the USB port. Mainly because to change the WiFi setup I have to disconnect the battery underneath the Wi-Fi board. I can't give any help with an Apple phone.

FYI, the interface only supports 2.4 gigahertz band WiFi, your phone might be using the 5 gigahertz band, and your router can also cause problems. If your phone is using a DHCP assigned address, it can also change the address of the phone. If you know how, assign a static address for your phone and reconnect.
 
Riden - How much Power Supply is needed? Is there a need for a 900w PS?

48v pack is max for me, for that I can only charge at max 10A, which gives me 500w give or take.

I opted for a meanwell 48v 500w Power Supply,
The 48v I can crank it up to 57v, which give me a good voltage to charge my 48v packs to 90% or 85% SOC.
 
sshibly said:
Riden - How much Power Supply is needed? Is there a need for a 900w PS?

48v pack is max for me, for that I can only charge at max 10A, which gives me 500w give or take.

I opted for a meanwell 48v 500w Power Supply,
The 48v I can crank it up to 57v, which give me a good voltage to charge my 48v packs to 90% or 85% SOC.
Click to expand...
If you have the 18 amp version of the Riden, more than 1000 watts is needed (60v x 18a = 1080w). They (Riden) currently sale a third party 1000 watt supply with it, with instructions to limit the power usage to 950 watts if using 120v (like the USA). There is a setting in the Riden to set this and it will automatically limit. I have a 1200 watt in mine currently. The nice thing is you can use it to charge a cell, a pack, or top balance, and you can automate it via your PC. It's a good choice, but not the best choice for all of these uses.
 
Just John said:
If you have the 18 amp version of the Riden, more than 1000 watts is needed (60v x 18a = 1080w). They (Riden) currently sale a third party 1000 watt supply with it, with instructions to limit the power usage to 950 watts if using 120v (like the USA). There is a setting in the Riden to set this and it will automatically limit. I have a 1200 watt in mine currently. The nice thing is you can use it to charge a cell, a pack, or top balance, and you can automate it via your PC. It's a good choice, but not the best choice for all of these uses.
Click to expand...
true,
but i am gauging my needs, I have no battery that I can charge with 60v and my little ebike 48v batts are limited on the amps, hence 500w for moi.

yes, if you have a need to pump out 1000w, u need one, but 1000w ps are noisy and big :-(
 
sshibly said:
true,
but i am gauging my needs, I have no battery that I can charge with 60v and my little ebike 48v batts are limited on the amps, hence 500w for moi.

yes, if you have a need to pump out 1000w, u need one, but 1000w ps are noisy and big :-(
Click to expand...
True, more expensive and not a good fit for your use. But 54.4v at 18 amps is very useful for charging a 48v LiFePO4 pack that can accept a higher charge rate, and it can still be used to top balance, supply power for 5v or 12v projects, etc. The Riden is a good compromise for a midrange desktop power supply, and is programmable.
 
Boondock Saint said:
Who wants to sell me their slightly used Riden when you're done? My battery purchase through Michael probably will not arrive until July . . . who knows. The more amps the better! I'll be configuring 2 x 48v each having 16s. Once I get these, I need to get 'r done, no poking around.
Click to expand...
Good luck. The Riden has so many features including a battery charge function I think anyone that has one will be inclined to keep it. :) But you never know, you might get lucky.
 
Gazoo said:
Good luck. The Riden has so many features including a battery charge function I think anyone that has one will be inclined to keep it. :) But you never know, you might get lucky.
Click to expand...
Exactly. My RD6012 is an example, I've replaced both fans with Noctua, really helps with the sound level, and I've replaced the one switching device with two, so I can run it at the full rated 720 watts output indefinitely. I wouldn't think of parting with it, especially not at a "used" price.

On the other hand, if anyone wants some 1200 watt supplies to go with their RD6018, I've got one. Runs hot, and has a 24 volt fan with no speed control. So, hot and loud, but will allow the full 18 amps at 60 volt output (1080 watts).
 
Just John said:
True, more expensive and not a good fit for your use. But 54.4v at 18 amps is very useful for charging a 48v LiFePO4 pack that can accept a higher charge rate, and it can still be used to top balance, supply power for 5v or 12v projects, etc. The Riden is a good compromise for a midrange desktop power supply, and is programmable.
Click to expand...
You have a domestic url for this? Something on Amazon / Ebay?

I have 32 cell to bring into submission.
 
Last edited:
Boondock Saint said:
You have a domastic url for this? Something on Amazon / Ebay?

I have 32 cell to bring into submission.
Click to expand...
Third parties sell on Amazon and usually ship from China. Riden ships from China, usually about 2 weeks and are cheaper. You will need a button cell and power cord, I will need to find the URL.

www.aliexpress.com

133.0US $ 20% OFF|Rd6006w Rd6012w Rd6018w Rd6006pw Dc Dc Bench Power Supply Multimeter Whole Set Not Assembled Adjustable Buck Mode Converter - Multimeters - AliExpress

Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com www.aliexpress.com

Usually takes 2 to 3 weeks. They do indeed use UPS expedited.
 
Last edited:
Gazoo said:
Good luck. The Riden has so many features including a battery charge function I think anyone that has one will be inclined to keep it. :) But you never know, you might get lucky.
Click to expand...

Apparently the only place I can get lucky these days in China : (
 
Steve_S said:
I bought a TekPower TP1540E for $189 USD to charge Cells, top balancing & charging up to 12V battery assembly.
I've used it quite a bit for Top Charging cells starting at 3.4V/45A CV till the cells hit 3.65V and are taking only 1.5-2.0A.
I had a problem with it when I first got it.... A Connector inside got loose (I guess during shipping, reconnected connectors and all was good.
Takes roughly 13 hours to take an EVE 280AH Cell from 2.60V to fully topped 3.65V drawing only 1.9A.

* Quirk. As most model with "dial" setting for voltage & current, you have to babysit the voltage as the cell fill. Once the amperage starts to drop below 25A the increase in voltage accelerates. Cells will absorb voltage quite quickly past 3.500V so you MUST eagle eye on the cells, check the terminal voltage on the Bench Supply against the cell voltage as you will have to fine-tune it at this stage. KEEP watching as the amperage declines, the voltage will increase to the cell and at the cell. Eventually, you will find the sweet spot for 3.600 or 3.650 where the amperage will slowly decrease to below 2.0A by which point the cell will be reaching "saturation". That can sit there but the amps dropping will slow as it continues from this point with little gain for the energy expended.

A note on Saturation.
Take a cell to 3.65V and just disconnect that "that voltage" and it will settle to 3.4?? something within an 1.5 hrs, 24 hours later it will be very low 3.400 to high 3.38+
Take a cell and fully top it "saturate" it at 3.65V and in 1 hour it will be 3.600, 2 hours 3.59?, 24 hours later 3.55?
This is consistent across the cells I have done.

TekPower also has this TP3030E 0-30V / 0-30A for $299 USD
TP3030E , Tekpower supply, DC Variable power supply, Adjustable Power supply, DC Power supply
Click to expand...
Steve, can you retry posting those links to the Tekpower supply? I click the links but they appear to be broken or not currently working for me. If you can do that it would be greatly appreciated thanks!!
 
NCblueridge said:
Hi everyone. Can anyone recommend a good mid-range benchtop DC power supply. I purchased an inexpensive one on Amazon last week and although it works, I'm not impressed with it and plan on returning it and purchasing a better one for a little more money ($200-$400). I have other uses for it also with some electronic projects I plan on doing.

Thanks,
William
Click to expand...
William, where in the NC Blue Ridge are you located, if you are?
I am located in the upstate of South Carolina and it would be nice to find someone who is into solar/off grid stuff that lives fairly close to me as well. In case either one of us can help the other with either with knowledge or materials on hand? If you’re interested please let me know, I would love to have a local community of people like us that live close together in our area.
Thanks
 
Shawn Hayes said:
Does anyone have any experience with this power supply and if so will you please share your thoughts recommendations or concerns?

kaitoradio.com

TekPower TP1560E DC Adjustable Switching Power Supply 15V 60A Digital Display

TekPower TP1560E DC Adjustable Switching Power Supply 15V 60A Digital Display
kaitoradio.com kaitoradio.com
Click to expand...
The TekPower power supplies seem to be re-branded versions of the Circuit Specialists ones (or vice versa). I have a different model from circuit specialists and it seems generally OK.
 
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