Mastervolt ChargeMaster Plus 24V / 80A – 2 Banks CZone Marine Battery Charger – 44320805 – 44320805
The Mastervolt ChargeMaster Plus 24/80-2 CZone is the next generation of battery chargers that integrates multiple functions into one single device.
Replacing auxiliary chargers, battery isolators and VSR, ChargeMaster Plus reduces system complexity and cost.
MFG Number: MAR-44320805 | BOW Item: 610932
$2,799.68
Shop Online — Ship to You or Pick Up In-Store
Fast Shipping — Order online now and get it delivered anywhere in the U.S.
Buy online now — choose your store, and we’ll reserve your order for pickup.
Availability: 1 in stock
Pickup Today (Same Day or Next Day):
- BOW Fort Lauderdale - 1 in stock
With the new Battery’s Best Friend architecture, the ChargeMaster Plus is capable of charging a multitude of battery chemistries, sizes and voltages. All batteries are charged with the fast and safe 3-step+ charge method.
Global Charging
The Mastervolt ChargeMaster Plus handles worldwide AC voltages and frequencies. Resisting large voltage fluctuations and high temperatures, it keeps working in harsh environments. For marine and mobile markets, ChargeMaster Plus is CE, E-mark, ABYC, UL, SAE, CEC and RCM/C-Tick compliant.
System Simplicity
Nowadays, equipment must be self-explaining. The ChargeMaster Plus 24/80/2 displays the charge phase of all three outputs in an understandable way. Robust and ergonomic connections save installation time. An integrated VSR eliminates the need for additional components and ensures that the alternators energy is funnelled through to the batteries.
Powerful Connections thanks to CZone Integration
In modern applications, all electrical components work together. The CAN-based MasterBus enables the ChargeMaster Plus to communicate with displays, shunts and power systems including communication standards like CZone®, NMEA 2000 and CANopen (through additional interfaces).
Models with the addition CZone do not only support MasterBus, but also support CZone and NMEA 2000 communication, without the need of additional interfaces. This ChargeMasters Plus series can be configured via MasterBus or will accept a CZone configuration file just like any other CZone device. Other communication standards like ModBus, CANopen, LinBus, etc. are supported via additional interfaces.
Features:
- Multicharger with two outputs, one in/output, DC-DC converter, current limiter and VSR.
- Combine Lithium Ion, Gel or AGM, and large or small battery banks on a single battery charger
- Charges multiple batteries while being underway.
- Extended specifications: offers 20 % more output at 14.4 V and 80 % charging power at 60 °C.
- Safe Charge: quickly recognize the State of Charge for extended battery life.
- Very wide operating range of 80-275 V AC, 35-70 Hz.
- Compact, easy to connect and quick to install.
- HS Code 8504.40.9550
Technical Specifications for 44320805
| Nominal output voltage | 24 V |
| Secondary output voltage | 14.25 /28.5 V (12/24 V) |
| Secondary output current | 15 A at 12 V / 20 A at 24 V (adjustable) |
| Max. charge current per output | 80 A |
| Max. AC current (230 V / 120 V) | 11.75 A / 23 A |
| Total charge current | 80 A at 28.8 V |
| Number of battery outlets | 2 (max.) |
| Battery capacity range | 280-700 Ah |
| Nominal input voltage | 120/230 V (80-275 V) 50/60 Hz |
| AC connection | screw terminals, suitable up to up to 6 mm² |
| Power supply mode | yes |
| Display/read-out | LED |
| Dimensions, hxwxd | 384 x 250 x 127 mm 15.1 x 9.8 x 5.0 inch |
| Weight | 6.3 kg 13.9 lb |
| Approvals | CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC/DOE, RCM/C-Tick |
| Charge characteristic | IUoUo, automatic / 3-step+ for Gel/AGM/flooded/Lithium Ion + user defined option |
| Temperature compensation | -60 mV/°C / -76 mV/°F; incl. temperature sensor |
| DC voltage compensation | through automatic compensation or MasterShunt |
| Power consumption (DC side) | < 2 mA (MasterBus off) |
| Current Control function | yes, through MasterBus or CZone |
| Power factor control | yes, > 0,98 |
| Temperature range (ambient temp.) | -25 °C to 80 °C, derating > 40 °C -13 °F to 176 °F |
| Cooling | vario fan |
| Protection degree | IP23, vertical mounting |
| Protections | over-temperature, overload, short circuit, high/low battery voltage, ignition protection |
| Charger Status Interface (alarm contact) | yes, using a Multipurpose Contact Output (code 77030500) |
PROP 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov or www.P65warnings.ca.gov/marine-vessel-parts
You May Also Like
-
640 In Stock
-
Suzuki Oil Ecstar 10W-40 Gl 990C0-01E30-GLN
$47.20 Add to cartECSTAR V7000 Semi-Synthetic 10W40 Marine Engine Oil is a proprietary blend of premium mineral oils and synthetic lubricants.
-
102 In Stock
-
-
83 In Stock
-
Shell Rotella T1 Diesel Engine Oil, Gallon – SHROT40GL
$31.81 Add to cartShell Rotella T1 SAE 30 Heavy Duty Engine oil uses well-proven performance additives to fight engine wear and prevent deposits, providing reliable lubrication and consistent performance. Suitable for day-to-day use in turbo and non-turbocharged older engines,
-
28 In Stock
-
Honda Marine 5W30 1 Quart Outboard Engine Oil
$12.03 Add to cartProvides superior engine protection for 4-stroke engines. Specially formulated and blended for Honda Marine engines. This authentic 08207-5W30M2 oil marine part is designed to sustain the highest standards of lubrication for your Honda engine, especially in challenging marine environments.
-
6 In Stock
-
-
21 In Stock
-
Sierra 10W-30 4-Stroke Synthetic Marine Oil
$113.77 Add to cartSierra 10W-30 Synthetic Blend Engine Oil is formulated specifically for 4-stroke outboard and sterndrive engine technology. The special blend of synthetic base oil and a balanced additive system exceeds FC-W requirements and provides excellent protection at high temperatures.
-
26 In Stock
-
YAMALUBE 20W-40 Four-Stroke Outboard Engine Oil (Quart)
$11.31 Add to cartGenuine Yamaha 4-stroke 20W-40 marine engine oil, featuring a mineral-based composition, is designed with anti-foaming capabilities to ensure optimal lubrication for outboard motors during high RPM operations.
-
49 In Stock
-
VOLVO 21681794 Full Synthetic Engine Oil 10W-40 1 Quart
$14.31 Add to cartVolvo Penta 21681794 synthetic gasoline engine motor oil – SAE 10W-40. Protects internal engine components under both high and low extreme temperatures.
-
74 In Stock
-
Yamalube 4M 20W-40 4 Stroke Conventional Marine Engine Oil, 1 Gallon
$37.57 Add to cartYAMAHA Yamalube Marine Performance Four-Stroke FC-W 20W-40 Oil.
Yamalube 4M is a mineral-based four-stroke outboard engine oil that’s an approved NMMA® FC-W® formulation specifically for use in the harsh marine environment. -
49 In Stock
-
FAQs for BOW.com
Why choose Boat Owners Warehouse for your marine needs?
With over 65 years of experience and more than 20,000 unique SKUs, Boat Owners Warehouse (BOW) is one of the most trusted names in the marine industry. Whether you’re shopping online or visiting one of our Florida store locations, including our flagship in Fort Lauderdale—widely recognized as the Boating Capital of the World—you’ll receive the expert guidance and customer service you need to find the exact parts, tools, or equipment for your boat, yacht, or recreational marine vehicle. We’re here to help every step of the way, from product selection to expert advice.
Do you ship nationwide?
Yes! We ship to all 50 U.S. states with reliable carriers. Standard, expedited, and freight shipping options are available at checkout.
Can I shop online or do I have to visit a store?
Yes! You can shop online 24/7 at BOW.com or visit any of our 8 Florida store locations. Choose what works best for you.
Is the entire inventory available online?
We offer over 20,000 unique SKUs and more 100,000+ products in stock, with most of them available for online purchase. Some items may be limited to in-store pickup due to Size, Weight, Shipping Restrictions or Local availability.
Do I need an account to place an order online?
No account is required — but creating one allows you to track orders, save products, and reorder faster in the future.
How fast do you ship orders?
We offer next business day shipping on most in-stock items placed before our daily cutoff time. You’ll receive tracking information once your order ships.
What makes BOW different from other marine retailers?
With over six decades of experience, unmatched product selection, and a dedicated team that goes the extra mile, we’re more than just a store — we’re your trusted marine partner.
Do you ship internationally to the Caribbean or Latin America?
Yes! We proudly ship to the Caribbean, Central America, and South America. For international orders, shipping rates and delivery times may vary depending on location and carrier. If you have questions or need assistance with your order, our team is here to help.
You can reach our expert support team by calling us at (800) 262-8799, emailing [email protected], or filling out our Contact Form. We’re always happy to help you find the right part or answer any questions.
What if I can’t find the part I need?
Our in-store and online support teams are trained to help you find the exact part or the closest fit. You can reach out via chat, phone, or visit us in-store for personal assistance.
Do you really stock over 100,000 marine products?
Yes — we maintain one of the largest marine inventories in the U.S. with over 100,000 products in stock and 25,000+ unique SKUs.
Are your products suitable for all types of boats?
Absolutely. Whether you own a small fishing boat, a luxury yacht, or a recreational cruiser, we offer gear, parts, and tools for every kind of vessel.
How long has Boat Owners Warehouse been in business?
We’ve been proudly serving boaters for over 65 years, starting right here in Fort Lauderdale — the Boating Capital of the World.
How many store locations do you have?
We operate 8 stores across Florida, offering expert service, vast inventory, and everything a boater needs — whether you shop online or in person.
Do you offer Easy Returns or Exchanges?
Yes — we want you to be 100% satisfied with your purchase. Most unused items can be returned or exchanged within 30 days of purchase with proof of receipt. Some exclusions may apply based on product type. For full details, visit our Returns Policy or contact us directly.
OUR LOCATIONS
BOW Fort Lauderdale
311 SW 24th St (SR-84), Fort Lauderdale, FL 33315
954-522-7998
Hour: Monday – Friday 7:30-6:00;
Saturday 7:30-5:00;
Sunday 8:00-4:30
BOW Pompano Beach
750 East Sample Rd, Pompano Beach, FL 33064
954-946-6930
Hours: Monday – Friday 7:30-6:00;
Saturday 7:30-5:00;
Sunday 8:00-4:30
BOW Riviera Beach
2230 Broadway (US 1), Riviera Beach, FL 33404
561-845-7777
Hours: Monday – Friday 7:30-6:00;
Saturday 7:30-5:00;
Sunday 8:00-4:30
BOW Stuart
1830 SE Federal Highway, Stuart, FL 34994
772-236-8670
Hours: Monday – Friday 7:30-6:00;
Saturday 7:30-5:00;
Sunday 8:00-4:30
BOW Yacht – Lauderdale Marine Center
2019 SW 20th Street, Unit 105, Fort Lauderdale, FL 33315
954-466-0500
Hours Monday – Friday 7:30 – 5:00
closed Saturday and Sunday
BOW Sarasota
7522 South Tamiami Trail, Sarasota, FL 34231
941-233-7777
Hours Monday – Friday 7:30 – 6:00
Saturday 7:30 – 5:00
Sunday 8:00 – 4:30
Blue Water Marine by BOW Foley
8103 Highway 59 South, Foley, AL 36535
251-943-4179
February 16th – October 15th | Monday – Saturday 7:30-5:00 / Sunday Closed
October 16th – February 15th | Monday – Friday 7:30 – 5:00 / Saturday 7:30 – 12:00 / Sunday Closed
BOW World Wide & Yacht Supply
3355 SW 2nd Avenue, Fort Lauderdale, FL 33315
954-463-8077
Hours Monday – Friday 8:00AM – 5:00PM
Saturday and Sunday Closed
