ProMariner 44021 Prosporthd Series USA Batttery Charger, 20 Amps, 3 Bank
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Power a multi-battery setup with the ProMariner ProSportHD Series USA Battery Charger (Model 44021), a 20-amp, 3-bank onboard charger designed for efficient charging and marine-ready reliability on 120V AC input.
Key Features
- Lightweight tri-surface heatsink design for optimized cooling
- True rated constant-current charging amps during charge mode
- Fully automatic multi-stage charging to help support battery performance and battery life
- USA 120V AC input
Product Compatibility
- Marine onboard battery charging for 12V battery banks (3-bank systems)
- Boats and fishing vessels using a 3-battery charging arrangement
Product Details
- Brand/Series: ProMariner ProSportHD Series
- Model/SKU: 175-44021
- Type: 3-bank onboard battery charger
- Charging Amps: 20 Amps
- Battery Banks: 3 bank
- Input: USA 120V AC
- Heatsink Design: lightweight tri-surface heatsink
- Weight: 4218 GRAMS
- Variant SKU: 175-44021
- Barcode: 031669440210
Parts Desk Insights
Best Use Case: A solid choice for anglers and boat owners who want a dedicated onboard charger to manage charging across three separate battery banks while keeping the charger thermally efficient thanks to its tri-surface heatsink design.
Common Issues: Common troubleshooting points for 3-bank onboard chargers include verifying correct battery bank connections, confirming the unit is on the correct AC input for your region, and checking that each bank receives proper charge indication during setup/operation.
Related Products & Accessories
- Browse Battery Chargers - Choose from other ProMariner and marine battery charger options sized for different battery banks and charging requirements.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.