How to charge two-battery connected series

Each 12-volt battery must be connected to its own charging bank. The batteries can remain wired in series.

Will this work on a single 24 volt battery: chins 24v 200ah lifepo4 battery, built-in 200a bms?

The GENPRO10X2 is designed for charging 12V per bank, it can be used to charge two 12V batteries wired together in series for 24V, but would not be capable of charging a single 24V battery.

how many 110volt amps does this pull?

The GENPRO10X2 draws a max of 2.5-amps at 120VAC.

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Genius GENPRO10X2: 2-Bank, 20A Onboard Battery Charger - 10A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries

Genius GENPRO10X2: 2-Bank, 20A Onboard Battery Charger - 10A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries

Product ID: 271332823

Details

Brand
NOCO
Color
Black
Item Weight
8.74 Pounds
Output Voltage
12 Volts
Product Dimensions
10.28"D x x

⚡20A total output, 10A per bank

💧IP68 waterproof, marine-grade durability

🌡️Thermal sensor for temperature-compensated charging

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VT101948

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
NOCO
Color
Black
Item Weight
8.74 Pounds

Description

⚡ Power up your marine game with precision and durability!

FORCE MODE REVIVAL - Resurrect dead batteries down to zero volts—never get stranded with a dead power source again.
DUAL BANK POWERHOUSE - Charge two 12V batteries independently with 10A each—perfect for multitasking pros.
SMART THERMAL SENSING - Adaptive charging adjusts to ambient temperature, maximizing battery life and safety.
MARINE GRADE WATERPROOF - IP68 sealed design ensures peak performance even under the harshest marine conditions.
VERSATILE BATTERY COMPATIBILITY - Supports lead-acid, AGM, gel, and lithium-ion batteries with selectable modes for precision.

The NOCO Genius GENPRO10X2 is a compact, high-performance 2-bank onboard battery charger delivering 20 amps total (10A per bank). Engineered for marine environments, it features IP68 waterproofing, temperature-compensated charging, and versatile modes for lead-acid and lithium batteries. Its Force Mode revives deeply discharged batteries, while a rugged, vibration-isolated mounting system ensures reliable operation in any orientation. Backed by a 3-year warranty and designed in the USA, it’s the ultimate charger for professionals demanding durability and precision.

Specifications

ASIN	B08G3LLZ3D
Amperage	20 Amps
Battery Charge Time	1 Hours
Best Sellers Rank	#9,925 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Boat Battery Chargers
Brand	NOCO
Built-In Media	(2) Black Truss-Head Screws, GENPRO10X2 20A 2-Bank Smart Waterproof Onboard Marine Battery Charger and Battery Maintainer (120-240VAC), Onboard Marine Battery Charger User Guide
Color	Black
Connector Type Used on Cable	Standard AC and DC power connectors
Current Rating	20 Amps
Customer Reviews	4.7 out of 5 stars 1,596 Reviews
Global Trade Identification Number	00046221190489
Input Voltage	120 Volts
Item Dimensions D x W x H	10.28"D x 9.25"W x 6.06"H
Item Type Name	NOCO Genius GENPRO10X2, 2-Bank, 20A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries
Item Weight	8.7 Pounds
Manufacturer	NOCO
Mfr Part Number	GENPRO10X2
Model Number	GENPRO10X2
Number of Ports	2
Output Voltage	12 Volts
Product Dimensions	10.28"D x 9.25"W x 6.06"H
Specification Met	CEC, FCC, UL
UPC	046221190489
Unit Count	1.0 Count
Warranty Description	3-Year Limited

Reviews

O**B

7.02.2026

J**.

21.04.2026

C**R

31.01.2026

F**E

26.02.2026

M**S

14.02.2026

J**E

5.05.2025

R**Y

2.04.2026

C**C

19.03.2024

Y**I

17.07.2025

A**R

2.05.2022

E**S

26.08.2023

V**E

16.09.2025

C**Y

12.07.2023

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