Starter motor for Diesel engines in boats draw a lot of current 250A is this appropriate for engine batteries?

Good Day, No, this produkt is only for 20amps designed. Regards Offgridtec GmbH

Can I use this just to shut off battery when discharge drops V too low? How? Batt+ to device Batt+ "In" & Batt- to device Load- "Out"?

The kemo m148a comes with instructions. Also some specs can be found with the item on-line. I will refer to the kemo m148a in the following response as 148. The 148 max amp rating is 20 amps with the addition of a metal backing plate the can be easily added with a few tools. As shipped the 148 is rated for 10 amps. Remember this is 12 v dc current. Connect appropriate wire and appropriate fuse from battery 12 v + to the 148 and marked battery +. For the battery 12 v - repeat the process except for fuse installation. From 148 load + repeat the process to connect to the device + to be controlled by the by the 148. From 148 load - repeat the previous process. The voltage disconnect range can be adjusted up or down on the 148 marked as switch off adjustment. I had to adjust in very small increments. Turning power off to the battery charge controller and running 148 controlled device (in my case an ice box). I had to turn on the the battery charge controller and turn off several times until I had the 148 adjusted to disconnect at 12.8 v dc (in my case).

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M148A Battery Monitor 12V/DC. Protect Car Batteries from Deep Discharge. Automatically turns on after return to normal voltage. Shut-off voltage adjustable approx. 10.4-13.3V, 12 x 11 x 4 cm

M148A Battery Monitor 12V/DC. Protect Car Batteries from Deep Discharge. Automatically turns on after return to normal voltage. Shut-off voltage adjustable approx. 10.4-13.3V, 12 x 11 x 4 cm

Product ID: 83943248

Details

Brand
KEMO
Size
12 x 11 x 4 cm
Product Dimensions
2.36"D x x
Number Of Cells
6
EU Spare Part Availability Duration
1 Years
Manufacturer
Kemo

⚡Adjustable 10.4-13.3V

🔋20A max capacity

🛡️Auto recovery feature

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MX$3582

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Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Power Up Your Peace of Mind!

💡 SMART RECOVERY - Automatically reactivates once normal voltage is restored, ensuring reliability.
🌍 ECO FRIENDLY DESIGN - Contributes to a sustainable future by prolonging battery life.
📏 COMPACT EFFICIENT - Sleek dimensions (12 x 11 x 4 cm) fit seamlessly into any vehicle setup.
⚙️ CUSTOMIZABLE CONTROL - Easily adjust the shut-off voltage to suit your specific needs.
🔒 PROTECT YOUR INVESTMENT - Safeguard your car battery from deep discharge with smart technology.

The M148A Battery Monitor by KEMO is a cutting-edge device designed to protect your car battery from deep discharge. With an adjustable shut-off voltage range of approximately 10.4 to 13.3V and a maximum switching capacity of 20A, this compact monitor (12 x 11 x 4 cm) ensures your battery remains in optimal condition. It automatically turns back on once normal voltage is restored, making it a reliable choice for any vehicle owner.

Specifications

Brand	KEMO
Size	12 x 11 x 4 cm
Product Dimensions	2.36"D x 3.43"W x 1.3"H
Number Of Cells	6
EU Spare Part Availability Duration	1 Years
Manufacturer	Kemo
Global Trade Identification Number	04024028031484
Item Weight	6.9 ounces
Item model number	M148A
Is Discontinued By Manufacturer	No
Manufacturer Part Number	1427335

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