diy solar

diy solar

Recent content by Dforster

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    New Daly "Smart" BMS w/ Communication. (80-250A)

    Any Daly BMS that has a UART interface can take the Bluetooth dongle required to connect to the phone/pad app. You can also use the correct interface to USB lead/Windows software to program the unit, but the app is more straightforward. Once correctly programmed, you can connect the USB pc...
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    why does battery % show 49% but voltage is 53.2v

    Do yourself a big favour, buy one of these things https://www.victronenergy.com/battery-monitors/smart-battery-shunt. I have fitted all manor of solar systems and this little shunt gives you very accurate readings, with a turnaround value reading, so you can see what goes and what comes out...
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    New Daly "Smart" BMS w/ Communication. (80-250A)

    Get a pi (a model 3 is fine and cheaper), download the free card imager from the official raspberry pi web site, image the card (with free latest OS (Buster I think), really easy, pi web site written for all ages and non tech people tells you how to do. Then get this free software for the pi and...
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    New Daly "Smart" BMS w/ Communication. (80-250A)

    Ken, ditto with my 4 packs. As long as you are sensible with charge/discharge currents the batteries work fine together. When my inverters click off because the cells have reached my cut off voltage, all four batteries quickly level off any small voltage changes and within 20 mins or so they are...
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    New Daly "Smart" BMS w/ Communication. (80-250A)

    So in answer to my settings:- READ THE BATTERY SPECS! Buy what you need for your application, there is no magic 'one fits all' solution. 1. Bat Temp: I live in the Caribbean, which sounds nice, and it is, but we get lots of sun, hot sun, the ambient daytime temp is 32C/humidity 75% plus. If I...
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    New Daly "Smart" BMS w/ Communication. (80-250A)

    Hi, Q1- if the Daly BMS was sold as an 80A unit, I would for sure set max charge and max discharge no higher than 80. More importantly, what are the ratings of your battery? What your battery’s are rated at will give your your ‘C’ rating, 1C being 1 x C. If your battery has a rating of 100A...
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    New Daly "Smart" BMS w/ Communication. (80-250A)

    You should try the HEYO range of BMS units (identical to the DALY units). Really good, excellent email help if you have issues/questions, fitted 30+ of them now with no faults, the ones I use have NTC, LightBoard, UART and RS485 outputs (and you can use them all at one time, so you can still use...
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    Inverter RS232 Information Display

    Hi, So, I have my Outback system which runs my main house, but also have a backup system (5kW) on seperate panels to charge my Nissan Leaf. For this is was using a NEDAP all in one with a Sony Fortelion 20kW battery rack. Now the Nedap went wrong, like properly wrong, and getting spares for it...
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    4x 5.5kW hour solar batteries for my OB system

    Dear All, I thought I would share this. I have made up 4x 5.5kW LifePo4 batteries with a Heyo BMS in each unit, Heyo BMS (150A @ 48V) has temp/display/UART/RS485 interfaces. I added both the BlueTooth and the USB UART leads to the BMS (the BT module is good to do the battery setup), the UART...
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