Is the output voltage range adjustable? I have a 24v lead acid battery bank and want to keep a 27.5v charge. Is this possible?

It is. You can actually set up both float and absorbtion voltage, as well as absorbtion duration . You can also run equalization manually or automatically. You do it all using a cell phone app.

I have 2 260w solar panels rated at 38.1voc. Im trying to set up a 12v battery bank that this will charge. Will the 150v/35A be too big for my system?

520 watts (panels) / 13.5 volts (charging voltage) = 38.5 amps. Since you will likely never see 100% efficiency from your panels, 35 amps on the controller is appropriate. If for some reason you got all 520 watts, no harm done, just a few amps unused for a few minutes at Noon on a perfect day. The voltage on the panel side is irrelevant as long as it is below the max rating on the controller.

Can i put 4 in series, w/ 48v battery? 4 panels x 37.44 v = 149.76 v 4 panels x 8.68 a = 34.68 a

Something to keep in mind is on a very cold day your voltage of the panels can go a few volts higher than normal, if that exceeds the 150 volt max of the controller you risk damaging it. You would definitely be better off with 2 in series and 2 in parallel. Just make sure your wiring can handle 20 amps vs 10 amps you would need to handle all 4 in series. Otherwise you'd need to step up to a charge controller with a higher voltage rating to prevent damage on a cold day. If you exceed the amperage it doesn't hurt anything, you just don't get the full output of the array, but if you exceed the voltage it will fry it.

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Victron Energy SmartSolar MPPT Solar Charge Controller (Bluetooth) - Charge Controllers for Solar Panels - 150V 35 amp 12/24/36/48-Volt

Product ID: 53353222

Details

Brand
Victron Energy
Color
No Color
Material
Plastic
Product Dimensions
8.07"L x x
Voltage
12 Volts (DC)

⚡35A max current output

📶Bluetooth real-time monitoring

🔋Supports 12/24/36/48V battery systems

51030 som

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Description

🔆 Charge smarter, live greener — power your future with Victron Energy!

SEAMLESS SYNC - Multiple controllers sync perfectly for ultimate battery health and system efficiency.
MAXIMIZE EVERY RAY - Lightning-fast MPPT tech ensures peak solar power even in shade.
SMART CONNECTIVITY - VictronConnect app gives you real-time data, 30-day history & remote control.
LOAD WITH CONFIDENCE - Intelligent load output protects your devices by auto-disconnecting at low voltage.
UNIVERSAL VOLTAGE FLEXIBILITY - Works flawlessly across 12V to 48V systems to fit your unique setup.

The Victron Energy SmartSolar MPPT Solar Charge Controller is a high-performance 35 amp controller supporting 12/24/36/48V battery systems. Featuring advanced MPPT technology, Bluetooth connectivity via the VictronConnect app, and synchronized multi-controller operation, it maximizes solar energy harvest while protecting battery longevity and enabling intelligent load management.

Specifications

ASIN	B073ZHRG9K
Best Sellers Rank	#19,138 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #10 in Renewable Energy Controllers
Brand Name	Victron Energy
Color	No Color
Customer Reviews	4.6 4.6 out of 5 stars (594)
Display Type	LCD or LED
Included Components	Victron Energy SmartSolar MPPT 150V 35 amp 12/24/36/48-Volt Solar Charge Controller (Bluetooth)
Item Dimensions L x W x H	8.07"L x 5.12"W x 3.54"H
Item Type Name	Victron Energy SmartSolar MPPT 150V 35 amp 12/24/36/48-Volt Solar Charge Controller (Bluetooth)
Item Weight	1.6 Kilograms
Manufacturer	Victron Energy
Material Type	Plastic
Model	SCC115035210
Part Number	SCC115035210
Unit Count	1.0 Count
Voltage	12 Volts (DC)
Warranty Description	Warranty

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51030 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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2 weeks ago

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