How to force 6V charging mode to 12V?

If the charger accidentally recognizes the 12V battery as a 6V battery (for example, the power of 12V battery is less than 6 Volts), you can press and hold the Mode button for 5 seconds, and the charger will be forced to switch to the 12V charging mode.

Will this work for 12v interstate batteries deep cycle 840 marine cranking amp battery?

Yes it will work. It is also a 6 volt charger select which battery you are charging. This charger has worked good for me

Can you adjust the amps?

No adjustment plug it in it's automatic

Does thus work on Marine gel batteries?

I charged a geĺ battery for a flashlight. It worked. Iuse this too keep my mower battery charged. Ìt works great

1.75-Amp 6V and 12V Smart Fully Automatic Battery Charger Maintainer, Trickle Charger, Battery Desulfator for Car, Lawn Mower, Motorcycle, Boat, Marine Lead Acid Batteries

1.75-Amp 6V and 12V Smart Fully Automatic Battery Charger Maintainer, Trickle Charger, Battery Desulfator for Car, Lawn Mower, Motorcycle, Boat, Marine Lead Acid Batteries

Product ID: 554096661

Details

Brand
NEXPEAK
Colour
1P-NC175
Item Weight
0.26 Kilograms
Output Voltage
12 Volts
Product Dimensions
5.6D x 9.7W x

⚡1.75A smart charging power

📊LCD screen with real-time status

🔋Supports 6V & 12V lead-acid batteries

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€ 62.14

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Charge smarter, live powered-up — never miss a beat!

4 IN 1 POWERHOUSE - Charger, maintainer, trickle charger & desulfator in one sleek device
BATTERY REVIVAL TECH - Advanced pulse repair restores old batteries, extending their lifespan
PLUG FORGET SAFETY - Auto cut-off & multi-layer protection for worry-free long-term charging
SMART VISUAL FEEDBACK - Intelligent LCD displays charging %, voltage & current for total control
UNIVERSAL COMPATIBILITY - Perfect for cars, motorcycles, boats, lawn mowers & more — all lead-acid types

The NEXPEAK 1.75-Amp Smart Battery Charger is a compact, versatile 4-in-1 device designed for 6V and 12V lead-acid batteries. Featuring an intuitive LCD screen, advanced pulse repair technology, and comprehensive safety protections, it maintains and restores automotive, marine, and powersport batteries effortlessly. Ideal for professionals and enthusiasts who demand reliable, long-term battery care with plug-and-forget convenience.

Specifications

ASIN	B0B3RJCNS5
Amperage	1.75 Amps
Best Sellers Rank	#105,258 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #535 in Battery Tools
Brand	NEXPEAK
Brand Name	NEXPEAK
Colour	1P-NC175
Connector Type Used on Cable	Alligator and Ring Connectors
Country of Origin	USA
Current Rating	1.75 Amps
Customer Reviews	4.5 out of 5 stars 4,426 Reviews
Input Voltage	12 Volts
Item Dimensions D x W x H	5.6D x 9.7W x 2.6H Centimeters
Item Weight	0.26 Kilograms
Item Weight Unit of Measure	0.26 Kilograms
Manufacturer	NEXPEAK
Model Number	NC175
Output Voltage	12 Volts
Product Dimensions	5.6D x 9.7W x 2.6H Centimeters
Specification Met	UL
Unit Count	1.0 Count

Reviews

L**H

Stage Charger with a True Maintainer Mode

24.03.2026

K**.

Better performance and display at half the price!!

19.03.2026

C**4

Works great & an amazing value

6.04.2026

A**M

Great size and works well

18.11.2025

B**C

Good little charger for a cheap price

5.02.2026

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