Want to adjust float voltage. Manual says I select that screen and then press select for 5 secs and should start blinking. But it doesn't.

Here is how to adjust your Float voltage, Step 1: press setting button to Browse your controller's parameter till you see 13.7V and your battery icon. Step 2: When the LCD shows 13.7V, long press the setting button until the 13.7V Flashing. Step 3: When the 13.7V Flashing, press plus or minus to adjust your parameter. Step 4: After adjust to your own parameter, let go the button just let is flashing, after 2-5 second it will stop flashing. Step 5: Press setting button to Browse your controller's parameter again, see if the parameter successful modify.

What happens if i put a 12v (18vmax) panel on a 24v battery?

it won't charge. This controller only charge when you solar panel voltage higher than battery.

Does this controller steps up voltage if I have 3 12v solar panel wanting to charge a 48v battery?

NO. Solar panel voltage must higher than battery voltage, 3 12V solar panel, max only 36V, it can't charge 48V batttery.

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MPPT Controller

Product ID: 461285253

Details

Brand
PowMr
Color
MPPT 20amp/12v
Item Weight
0.67 Kilograms
Material
Metal
Voltage
24 Volts

⚡20A max charging current

📊99.5% MPPT tracking efficiency

🔋Supports 12V & 24V battery systems

£54.21

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Description

🔆 Charge smarter, live greener — never miss a watt!

CUTTING EDGE MPPT TECH - Maximizes solar harvest with industry-leading 99.5% tracking efficiency
POWER PACKED 20 A OUTPUT - Delivers robust charging current for efficient energy management
DUAL VOLTAGE FLEXIBILITY - Seamlessly auto-detects and supports both 12V and 24V systems
REAL TIME LCD MONITORING - Stay in control with instant insights on charge status, voltage, and errors
VERSATILE BATTERY COMPATIBILITY - Works flawlessly with AGM, Gel, Flooded, Lithium, and LifePO4 batteries

The PowMr 12V/24V 20A MPPT Solar Charge Controller intelligently optimizes solar energy capture with up to 99.5% tracking efficiency. Compatible with multiple battery types including Lithium and AGM, it auto-detects system voltage and features a clear LCD display for real-time monitoring. Designed for professional-grade solar setups, it supports up to 260W (12V) or 520W (24V) solar input, ensuring reliable, efficient battery charging for your sustainable lifestyle.

Specifications

ASIN	B0B5WP1BY8
Best Sellers Rank	#94,369 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #82 in Renewable Energy Controllers
Brand Name	PowMr
Color	MPPT 20amp/12v 24v
Customer Reviews	3.6 3.6 out of 5 stars (53)
Display Type	LCD
Included Components	no
Item Weight	0.67 Kilograms
Manufacturer	PowMr
Material Type	Metal
Model	Keeper1220
Operating Temperature	55 Degrees Celsius
Part Number	POWKeeper1220
Smart Home Compatibility	Not Smart Home Compatible
Voltage	24 Volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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£54.21

Duties & taxes included

In stock

Sold byAmazon UKDelivered 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 UK.

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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