shows the battery voltage & solar charge but the used by inverter and remaining hours is blank - how do i get this to read?

This charge controller device does not monitor your separate inverter. Only the battery and the solar charge. There are 12 volt load terminals on the charge controller but those should not be connected to an inverter per the manufacturer's requirement. However turning off the inverter and monitoring the battery state of charge will let you know how much charge is left to get to the lowest recommended level of 20%. Full charge depends on the battery type: 12.7 for lead acid, 13.0 for AGM, and 13.6 for LiFePo4. If it shows higher that it is showing the higher solar charge voltage. You can calculate the load on the battery by multiplying the amps of the 120 volt appliances by 10. Then divide the amp hour of the battery (times the current state of charge that this device shows less 20% ) by the 12 volt amp load to get number or hours remaining. Make sure you turn off your inverter when not using your 120 volt appliances.

Are there better instructions than the booklet that offers zero explanation of how the device and or the app works to properly monitor my system?

Try Ytube it has some decent videos

Battery charging volts is set at 14.4v, but app shows max battery voltage at over 20v. is this normal? lifepo4 battery set to lithium on controller.

Check to see if the over 20v is the voltage of the solar panel. It is normal for solar panel voltage to be near 20 v. The controller steps it down to 12 to 14.4 voltage.

Can it be mounted outside?

I don't see why it wouldn't be okay outdoors. The unit is well sealed. UV exposure is my only unknown.

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Renogy BT-1 Bluetooth Module for PWM Charge Controllers (Wanderer/Adventurer) – RJ12 RS232 Port, Wireless Monitor via DC Home App,IP54

Product ID: 207358732

Details

Brand
Renogy
Color
Black
Item Weight
130 Grams
Material
Plastic
Product Dimensions
2.65"L x x

📱Bluetooth 4.2 & BLE tech

📶82ft wireless range

🔋Solar-powered via RJ12 port

371 Lei

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Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Stay connected, stay charged—solar control at your fingertips!

SMARTPHONE SYNC - Connects instantly to the Renogy DC Home app for real-time system insights and control.
PLUG PLAY POWER - Powered directly through the RJ12 port—no extra batteries or cables needed.
RUGGED RELIABLE - IP54-rated protection means your module thrives in outdoor environments, rain or shine.
SEAMLESS SOLAR CONTROL - Wirelessly monitor & adjust your Renogy charge controller from anywhere within 82ft.
EFFORTLESS ENERGY EFFICIENCY - Embedded low-energy Bluetooth chip ensures fast, uninterrupted communication without draining power.

The Renogy BT-1 Bluetooth Module transforms compatible Renogy PWM solar charge controllers into smart, wireless systems. With Bluetooth 4.2 and BLE technology, it offers a robust 82ft signal range and connects seamlessly to the Renogy DC Home app for real-time monitoring and parameter adjustments. Powered directly via the RJ12 port and protected by an IP54 rating, this compact module ensures efficient, hassle-free solar management for the modern energy-savvy professional.

Specifications

ASIN	B0894SDTSL
Best Sellers Rank	#9,249 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4 in Renewable Energy Controllers
Brand Name	Renogy
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (2,140)
Display Type	LED
Global Trade Identification Number	00810009714415
Included Components	BT
Item Dimensions L x W x H	2.65"L x 1.38"W x 0.55"H
Item Type Name	Compatible with Renogy Rover/Wanderer/Adventurer Charge Controllers
Item Weight	130 Grams
Manufacturer	Renogy
Material Type	Plastic
Model	Bluetooth Module
Part Number	BT-1 Bluetooth Module
Smart Home Compatibility	Smart Home Compatible
UPC	810009714415
Unit Count	1.0 Count
Warranty Description	1-year material and workmanship warranty

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371 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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