Two PowMr 60A Charge Controllers Feeding The Same Battery

Can two charge controllers power the same battery? That's what we test in this video.
0:00 Intro
0:32 12V AGM Double Charger
7:20 48V Lithium Ion Double Charger
8:30 Test Equipment - Resistance Heater
11:53 Conclusion
For this test we are using a pair of PowMr 60A Charge Controllers. These do not talk to each other, they are imply sensing the voltage of the battery and reacting as they see fit.
PowMr Charge Controller beenebrothers.com/PowMr60A
As an Amazon Associate I earn from qualifying purchases.
As a Battery Hookup affiliate I earn from some purchases made through links on this page.
#DIY #Solar #PowMr

[@zoart9335]

Well put together, hope your channel takes off

[@offgridbydesign3826]

Not a stupid idea at all. I've used multiple controllers for one of my lead acid battery banks, I've used them for multiple solar arrays as well one for solar and the other for wind. There are different charge strategies that work and just depnds on what your goals are. Good video!

[@shawnwoods35]

Any chance u can make a video how u wired the controllers up?

[@sharyncomstock7066]

Great information

[@randylenart9674]

Like to see more on these controllers I just bought four of them very good video

[@solarandwindinsouthtexasda1473]

Yes it does work I have four of them charging the same battery Bank

[@sails3538]

A suggestion.... No YTer shows their full system working. How many amps they draw during the night and how long it will take the solar controller to replace those amps. In a real battery bank of over 500 amp hours. And no body shows systems that are a year old and how they survive time. It is a niche.

[@diybygenomandin]

Where can i buy only the lcd of this one?

[@kimmogensen5390]

hi has anyone any expirence with the chargecontroller/inverter units 60A 80A versions from pow mr ???

[@moneth08able]

Hello quick question i have 8 12volt everstart battery 29dc from walmart but i cant find a charging voltage profile for this do you have any idea so i can set my float and bulk charging

[@BeeneEnergy]

Unfortunately I don’t have a good answer for you. Ideally they’d have a spec sheet showing optimal settings. If not you could look for flooded lead acid generic parameters.

[@josephamaral419]

I know this is an old video, but I see people reporting that if you use the 2 pv and bat connections for using wires at the same time, the controller thinks there is a 24v bat connected and some settings do not apply as 12v because of this. Have you ever encountered this issue? Yes, I just got one but I have not done testing yet.

[@supremeautomotive6749]

I have a question can you use the same solar panel wires then Y connector to run to 2 different charge controllers for parallel solar panels for higher amps then 1 controller to take. Or do you need separate wires for 2 different charge controller

[@BeeneEnergy]

I’ve never seen a charge controller that supported that configuration officially. Unofficially it would probably work.

[@supremeautomotive6749]

@@BeeneEnergy or do like positive bus bar from solar panels and just have charge controllers go to bus bar. You should try it

[@yusufbercin7415]

I have smart inventer. It has two input, first one battery input second pv input but my inventer has pwm controller for this reason I bought this mppt. How can I connect with my inventer? Which output I use?

[@BeeneEnergy]

You would connect your mppt charge controller directly to the batteries, don’t connect through the existing smart inverter.

[@jebbdomingo9173]

Regarding your PowMr and Li batteries, did it trigger the floating mode (Working mode: 8.0) when the battery is fully charged? In its manual, it is stated that D01 floating voltage is not used when choosing Lithium in DO4.

[@808pathfinder]

Going to be lucky if you can get one later ,since you did you video it went up 50% ,

[@billw6903]

I have 2 powmr on 900 amp lead acid. They seem optimistic for voltage too. So far working good but I probley will go lithium soon maybe with lv2424.

[@BeeneEnergy]

They certainly have their quirks, but failing isn't a common one so I'm thankful for that :).

[@rontech34]

Question I have 2 PowMr 24v hybrid inverters 3000w each I have 24v 600ah Lipo4 battery bank can I connect both inverters to the 1 battery bank? But can I connect 4000w solar panels to 1 Inverter to charge the batteries ? The reason why because I don't want to split the panels in half and run another set of wires from my roof down to the garage it's to much work

[@BeeneEnergy]

Yes both inverters to the same battery bank sounds ideal to me.

[@NeoVdV]

Hi Neo ​Sorry, your controller is TracerAN 40A series,we don't recommend connect controllers in parallel to charge one battery bank. ​ ​Have a nice day! ​ Best regards Fred Zhao EPEVER Support

[@psychicmind9]

Do you have any review regarding 2 different wattage? Example: Solar controller 1 - Input 800 watt Solar controller 2 - input 200 watt Scenario 1: Both having same Volt Scenario 2: Both having different volt Does it work ?

[@BeeneEnergy]

Won’t be a problem, Both can have different solar panel voltages or different wattages of panels.

[@psychicmind9]

@@BeeneEnergy Higher voltage move to lower voltage. Im afraid higher input controller from solar panel will "mistakenly" charge the peer controller which is lower voltage.

[@BeeneEnergy]

@@psychicmind9 since each charge controller has its own dc to dc converter they will each be the same on the battery side of the charge controllers.

[@psychicmind9]

@@BeeneEnergy that make sense.. From the battery point of view, each controller have same voltage.

[@dangoras9152]

I wonder if I could use 6 of those instead of 4 classic. Cause im gonna come and look at ur panels cause I want more i just don't want to buy more classics even thou I get them classic cheap cause im a dealer.

[@BeeneEnergy]

Seems logical that if two work then 6 would work!

[@dangoras9152]

Yeah but those are the knock off makeskyblue right ..

[@abedsaad640]

Bro how I know my battery in bulk mode while reading the controller?

[@BeeneEnergy]

There’s a status screen at the top of the menu. I think bulk is 4 and float is 8 but you can verify in the manual.

[@keiths1400]

Can anyone tell me about issues with the battery charge amp limits being 100 amps And the charge controllers delivering 120amps in parallel?

[@BeeneEnergy]

Could you expound on your question? I’m not quite sure what you are asking.

[@keiths1400]

@@BeeneEnergy well, lead acid and lifepo4 battery manufacturers list max charging amps at 100amps If the chargers are 60 amps each does this not exceed the 100 amp current limit?

[@jasonbrown467]

@@keiths1400 what array do you have setup and what battery voltage? the controller's max amp output is about 60amps, i have seen it go as high as 70 amps btw. but if you only have 400 watts of solar power connected to it you will not see 60 amps out of the controller. i only know principles at the moment, as i am waiting on my next panel to arrive before i can test more with this controller

[@alexodin2311]

very cool, i'm from brazil, here people use it in their solar systems, it's common, i thought of putting another third powmr 60a between them and the battery, i could connect them in a serial way to double the voltage and maintain the amperage ? since we would be at the 60A amperage limit and I couldn't put 120A of controller... is there anything that can be put that connects them in some smarter way? if it's cheap it would help a lot lol...

[@fermin7783]

Charging with 2 charge controllers with just one array system for a bank of batteries? Is it true and possible?😮

[@radekzmazur3389]

You need to add diodes to prevent current from one controller to another

[@kauaikit]

Maybe show 2 controllers w/2 separate solar panel arrays charging the same battery?!? 😅

[@leetaves9143]

HOW MANY 24V PANELS 235 WATT CAN I PUT ON ONE OF THEM SOLAR CHARGER CONTROLLER THANK YOU

[@BeeneEnergy]

Depends on what your battery voltage is.

[@leetaves9143]

@@BeeneEnergy im working up to 500 amphrs

[@BeeneEnergy]

@@leetaves9143 But what voltage?

[@leetaves9143]

@@BeeneEnergy 24 volts

[@mickeylewis8094]

Depends on which model of the charge controllers you are using. For the 30 amp cc it is 720w, 40 amp it is 960w, 50amp it is 1200w and for the 60amp it is 1440 watts for your 24volt panel that you have assuming you are using a 24volt battery bank. If you are using a 48volt battery bank the numbers will be different. If you are using a 24volt system you need to series two of your panels because the charge controller starts from 37v-105v input in the in the 24v system range.

[@kheavmady8780]

I have this model too. I noted sometime it over charge my lifepo4 to 15v. and its static reading is wrong.

[@BeeneEnergy]

When you say static reading, which are you referring to? I agree that the readouts aren't accurate in general.

[@travishodges5179]

If those two charge controllers were say sharing two strings of three 370 watt panels, would they share the load or fight and never settle out

[@BeeneEnergy]

I’ve never played around with that. Maybe one day.

[@travishodges5179]

@@BeeneEnergy I’m going to try it, those Powmr can’t seem to handle more than 2200 watts without going into over heat and loosing their minds, if two can share a string it would save running an additional wire to the array and I could run 3p 3s. A better controller is definitely the solution but if you already have the things might as well use them up. And Thankyou for always responding to posts even on old videos, it shows how much you care.

[@travishodges5179]

Well results are in, connected a single string of 3s 2p 370 watt panels to two Powmr 60 amp charge controllers: end result as soon as the second unit was connected to the string : the panels were pulled down to battery voltage and acted like a pwm. So it’s a fail!?oh well now I know

[@BeeneEnergy]

@@travishodges5179 Yikes that’s too bad.

[@kipdennis3796]

I have makeskyblue 40A,the voltage display is off,when I measure with multimeter there is deviation of +0.2v,so i decided to lower float and absorption voltage by -0.3v ,I was worried it will fry my lead acid gel battery,new fan from Kenya

[@BeeneEnergy]

Glad to have you from Kenya! Good call on measuring the voltage. I do the same when setting up one of these units.

[@jab376]

It shouldn't be a problem using both.

[@therelaxationstation8300]

What gauge wire are you using

[@BeeneEnergy]

I was using 10awg wire.

[@therelaxationstation8300]

@@BeeneEnergy awesome thank you. I have 3 powmr I'm bout to mount and start wiring everything together

[@BeeneEnergy]

@@therelaxationstation8300 FYI to support the full 60a for each it should be 2x 10awg. I was running just one to each since I wasn’t pushing much energy at the time.

[@therelaxationstation8300]

@@BeeneEnergy so 2 pos and 2 neg from each charge controller to the battery bank? So a total of 6 pos 6 neg to my battery bank from my 3 controllers

[@BeeneEnergy]

@@therelaxationstation8300 Yep that’s what I meant :). And don’t forget those fuses right before connecting to the battery.

[@dailyprayerdevotion6674]

Are these UL 1741 rated?

[@BeeneEnergy]

Someone can correct me if I’m wrong but ul1741 is specifically for an inverter only feeding power to the grid if grid is available, and shutting down when no grid is present. Since this is a charge controller with no inverter functionality it won’t have any ul1741 cert. For that matter it doesn’t have any ul certification being an inexpensive off grid controller :).

[@dailyprayerdevotion6674]

Just asking if it was listed. And NEC states "all equipment must be listed' for on and off grinder. If local code and inspectors Don't require then you are lucky

[@zumadale]

Hypothetical.. what happens to voltage in parallel? One controller putting out 50 volts....the other 25 volts...in parallel to one battery bank. Will voltage go to 25? Will the 50 volt start over riding and drive voltage over 25??? My experience is the higher voltage drives the lower voltage higher.

[@BeeneEnergy]

Both charge controllers are configured to charge at the same voltage or very close. Yes if one is higher and the battery reaches that voltage the second controller will back off as it sees the battery as charged.

[@zumadale]

@@BeeneEnergy I have 2 controllers....one goes to float...27 volts...the other is still in absorb...30 volts...when the one goes to float...the other is trying to ramp voltage back up to 30 volts....it will NOT go into float until it hits absorb voltage first.

[@BeeneEnergy]

@@zumadale Are they both the same model of controller or at least configured the same? Absorption is typically a timer I believe. The ones I had in this test don’t absorb, they go straight from bulk charging to float.

[@zumadale]

@@BeeneEnergy Yep...they are exactly the same...you adjust things via dip switches and pots. They use a common external shunt so they know exactly what's going into the batteries versus what's being used in the cabin. They also have their own battery temp sensors located in the same place on the battery bank. System uses END AMPS to transition to float via the external shunt.

[@MegaCyrik]

I dont understand what you mean they are not synchronized. There is nothing to synchronise. If you empty two bottles of water into the sink, you dont need special synchronise for it to work lol, i assure you, it just work.. also with 20 bottles. Concerning to hear they show wrong watts. I'm getting quite allergic to those powMr. Saw the review from another youtuber where the 60a new model you tested which got stock in mode 7, was sending out 80v to the battery if you had a battery disconnect just for a few sec.. seems its absolute pure garbage all around their offerings.

[@BeeneEnergy]

More expensive controllers like the outback FM80 have sync cables so they act as one. This was me playing around with whether that seemed overkill. As you state it seems rather intuitive they can just operate independently since they are all just sensing voltage. While these silver powmr charge controllers seem to operate better than their new m60 "pro" model there do seem to be differences over time, as some I've tested have worked better than others. Reliability hasn't been a concern so far though and they stay cool enough to keep out of the default mode the m60-pro goes into.

[@MegaCyrik]

@@BeeneEnergy im guessing its a sync for making sure you dont do multiple cell equalisation on flooded batteries. So if you have 2 or more then they pick one to do it monthly, not every 5 days because you have 6-7pcs. Charging has really no info one could tell the other. They sence voltage as you say, and thats going to have a tiny difference among them self. Then they sence resistance as they try to charge.. slight difference there too. Nothing to communicate related to charging. Edit: Im going to buy another "One Solar" controller. Its cheap and all the competition have very poor displays that make me allergic. Especially srne controllers look like they came out of 1982 with their menu. I just hate looking at them.. like writing letters on an old calculator.. just stupid in year 2022 because they want to save 12cent. :)

[@kalypsoisland]

Background music distracting

[@sheralam69128]

The writing shows on Controller different maybe other one fake

[@808pathfinder]

The company name logo is different then the other, one could be a knockoff

[@opennrgdotcom]

KZbin needs to have a way to turn off the annoying background music.

[@BeeneEnergy]

My apologies! Some of these videos I edited myself I didn’t adjust the audio properly. Would be a cool feature!

[@herbertvonsauerkrautunterh2513]

I wouldn't touch these things.. The epsolar tracer bn are easy better fit Chinese stuff and they can be paralleled as well..epsolar recommended then fur that over their other models

[@powerwall]

Mppt good

[@jerrypatterson55]

those are not 60 amp its been proven 40 max they lie and do the firmware so it says 60

[@BeeneEnergy]

Could you point me to where it’s been proven? Because I’ve seen well over 40 with mine.

[@jerrypatterson55]

@@BeeneEnergy kzbin.info/www/bejne/eZCVdYtvdtOSiMU&ab_channel=z1power its called typing in youtube amazon mppt not 60 amps and there ya go

[@jerrypatterson55]

@@BeeneEnergy did you sere the vid i showed you there is another one too dont remember where it was but on youtube these things produce current when it says fully charged they cannot be trusted

[@dayleedwards3521]

You are talking rubbish. The 60 amp rating is set by the MOSFET count, NOT the firmware. You dont even have one of these.