MX60 Solar Charge controller used for overlanding

Discussion about the MX60 Charge Controller

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Tron
Forum Junior Member
Posts: 2
Joined: Wed Apr 22, 2020 1:23 am
My RE system: MX60 PV MPPT charge controller used for over landing 12V power requirements. PV array is 3X 17V solar panels. Battery Bank consists of 2X 154Ah LiFePO4 batteries.

MX60 Solar Charge controller used for overlanding

Post by Tron »

Hi All, I hope you can give me some guidance on using the MX60 to charge LiFePO4 batteries when doing overlanding trips.

My set up is as follows:
  • 18V (22VOC) solar array of 3X 80Wp 4.44A
  • MX60 charge controller
  • 2X 13V 154Ah Blue Nova LiFePO4 batteries
I have used the MX60 before as part (solar charge) of a set up in my Land Rover Defender (since 2003) with a 48V 200Wp solar panel charging 2X 12V High Cycle 1250 batteries. It worked well but I now wish to rig out a off road trailer as described above.

My questions/statements (sorry I am no Pro) are:
  • The MX60 automatically selects the PV input Voltage and thus no setting changes required. What about the output charge values?
  • Can I manually change the charge settings for the LiFePO4 batteries? I am led to believe that the batteries require Bulk at 14.2V, Float at 13.7 and Absorption at (??)
Any recommendations or comments on these values PLEASE.

Also, help on how to change these charge settings if need be?
Mike Curran
Forum Emperor
Posts: 2272
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied VFXR3524A-01's series stacked, replaced GVFX's (2020)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS. Tigo ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input from 14 Talesun 275W, Enphase M215 microinverters

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: MX60 Solar Charge controller used for overlanding

Post by Mike Curran »

My questions/statements (sorry I am no Pro) are:
The MX60 automatically selects the PV input Voltage and thus no setting changes required. What about the output charge values?
You have to program them into the MX60. It does have default settings for them, but they're not meant for LiFePO4 batteries.
Can I manually change the charge settings for the LiFePO4 batteries? I am led to believe that the batteries require Bulk at 14.2V, Float at 13.7 and Absorption at (??)
Of course you can do this in the MX60, if that's what you're referring to. You only program the absorb setting, bulk is just an intermediate charging stage on the way to reaching the absorb voltage setpoint. I don't recall how the MX60 labels the absorb voltage setting, whether they call it bulk or absorb they're basically the same, so your14.2 would be the correct setting for whatever the MX60 calls it. You will also need to program absorb time into your MX60, your battery manufacturer should have a spec for this.
https://smart.tigoenergy.com/p/pZXn7SZQyO45?date=2021-04-19
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
Tron
Forum Junior Member
Posts: 2
Joined: Wed Apr 22, 2020 1:23 am
My RE system: MX60 PV MPPT charge controller used for over landing 12V power requirements. PV array is 3X 17V solar panels. Battery Bank consists of 2X 154Ah LiFePO4 batteries.

Re: MX60 Solar Charge controller used for overlanding

Post by Tron »

Thanx so much Mike.

Just to clarify: Input PV values not, but outputs yes as per your quote
You have to program them into the MX60.
juliadavid
Forum Junior Member
Posts: 1
Joined: Fri Jan 01, 2021 11:58 pm

Re: MX60 Solar Charge controller used for overlanding

Post by juliadavid »

I want 60 Amp, Solar Panel Controller. Please recommend any good online store?
P.S. I've found Vevor coupons for this. I hope this helps if any of you are looking for it.
Last edited by juliadavid on Tue Jan 05, 2021 10:26 pm, edited 1 time in total.
sbrownian
Forum Czar
Posts: 538
Joined: Mon Nov 30, 2020 9:23 am
My RE system: GS8048 FM80 FNDC Mate3
4kw solar
7kw Kubota propane gen
Had 1200 Ahr FLA Locomotive batts
Just replaced with
2 x 300 Ah ReLion Lithium packs
MUCH more efficient!!
Location: Central Washington State

Re: MX60 Solar Charge controller used for overlanding

Post by sbrownian »

Reminds me of a story my wife told me when she got back from a cruise that had a stop and short pub tour in Ireland..

When they get to one local pub, it had Guinness beer posters all over the place, a blinking neon sign with the Guinness logo on it, plus the greeter to the pub was holding a pint mug with the Guinness logo, and then the gal in line ahead of my wife asks the guy, "What would you recommend for a beer, here?"
(Sorry, I just >had< to wake up the troll..)
Information, you get not; if incorrect question, you ask..
Mike Curran
Forum Emperor
Posts: 2272
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied VFXR3524A-01's series stacked, replaced GVFX's (2020)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS. Tigo ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input from 14 Talesun 275W, Enphase M215 microinverters

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: MX60 Solar Charge controller used for overlanding

Post by Mike Curran »

If you can get it on tap, I'd recommend a Guinness here, too. :grin:
https://smart.tigoenergy.com/p/pZXn7SZQyO45?date=2021-04-19
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
raysun
Forum Emperor
Posts: 4554
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: MX60 Solar Charge controller used for overlanding

Post by raysun »

Mike Curran wrote: Mon Jan 04, 2021 12:44 pm If you can get it on tap, I'd recommend a Guinness here, too. :grin:
Actually I'm quite suprised at the amount if technology Guiness puts into their cans. Polyethylene lining, oxygen purging and gas (nitrogen I think) injection to keep the stout fresh.

If the local doesn't turn their kegs quickly enough, I order a can.
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