Description
Sentry Marine Battery Charger 24VDC 40A 3-Bank | Boat Supply Store
Engineered for the most demanding marine applications, this Sentry Marine battery charger ensures unwavering power to your 24VDC systems. Its robust ferroresonant technology guarantees decades of dependable operation in corrosive saltwater environments, unlike lesser charging solutions. Delivering a substantial 40A total output across three independent banks, it actively prevents overcharging while offering ignition protection for safe engine room installation. This unit is ideal for maintaining lead-acid batteries and can be configured for AGM, Gel, or Lead Calcium chemistries.
Key Features
- Completely charges batteries and prevents overcharging
- Ignition protected for safe installation in engine rooms
- Versatile charging for Lead-Acid, optional AGM, Gel, and Lead Calcium batteries
- Field serviceable design for extended operational life
- Reliable 2-year parts and labor warranty
- Dual input voltage compatibility (115/230V AC)
- Powerful 24VDC output with 40A total amperage
- Independent charging for up to 3 battery banks
Specifications
| Product Specifications | |
|---|---|
| Input Voltage | 115/230V AC |
| Output Voltage | 24VDC |
| Total Output Amperage | 40A |
| Number of Banks | 3 |
| Battery Type Compatibility | Lead-Acid, Optional AGM, Gel, Lead Calcium |
| Ignition Protected | Yes |
| Charging Technology | Ferroresonant |
| Field Serviceable | Yes |
| Warranty | 2-year parts and labor |
Who This Is For
Boat owners and marine professionals who demand unwavering reliability for their 24VDC systems in harsh marine conditions. This charger is built for longevity and consistent performance across multiple battery types.
How It Compares
| Feature | Sentry Marine Battery Charger 24VDC 40A 3-Bank | ProMariner ProNautic P4 24V 40A 3 |
|---|---|---|
| Input Voltage | 115/230V AC | 100-240V AC, 115/230V AC |
| Output Voltage | 24V DC | 24V DC, 24V DC |
| Total Amperage | 40A | 40A, 40A |
| Number of Banks | 3 | 3, 3 |
| Battery Type Compatibility | Lead-Acid, Optional AGM, Gel, Lead Calcium | Lead Acid, AGM, Gel, Lead Acid, AGM, Gel |
| Ignition Protected | Yes | Yes, Yes |
| Charging Technology | Ferroresonant | Digital (Smart Charging), Multi-stage |
| Field Serviceable | Yes | No, No |
| Warranty | 2-year parts and labor | 3-year limited, 2-year limited |
Common Concerns Answered
What is the warranty on the Sentry SFR2440/3X?
The Sentry SFR2440/3X features a comprehensive 2-year parts and labor warranty, underscoring its durability and Sentry Marine's confidence in its long-term performance.
Can I return the Sentry SFR2440/3X to Boat Supply Store if I have an issue?
Due to the specialized nature and manufacturer-direct support structure for this advanced charging system, the product may not be returned to the original point of purchase. Direct manufacturer contact is required for any warranty claims or technical issues.
Are there any specific configurations needed for AGM, Gel, or Lead Calcium batteries?
While the Sentry SFR2440/3X is compatible with AGM, Gel, and Lead Calcium batteries, these charging profiles require specific configuration or settings which are detailed in the product manual. Basic operation defaults to Lead-Acid.
Frequently Asked Questions
What types of batteries can the Sentry SFR2440/3X charge?
The charger is designed to charge Lead-Acid batteries and can be optionally configured to charge AGM, Gel, and Lead Calcium batteries.
Is the Sentry SFR2440/3X ignition protected?
Yes, the Sentry SFR2440/3X is ignition protected, making it safe for installation in potentially hazardous engine room environments.
What is the output amperage of the Sentry SFR2440/3X?
The charger provides a total output of 40 Amperes (A) distributed across its three banks.
Can this charger be used in a 12V system?
No, this Sentry Marine battery charger is specifically designed for 24VDC marine electrical systems only.
What is the input voltage range for the Sentry SFR2440/3X?
The charger accepts a universal input voltage range of either 115V AC or 230V AC, allowing for flexibility in installation locations.
