Battery Tender Weather Resistant 800mA, 12V Battery Charger

The rugged Battery Tender® 12V, 800mA weather resistant battery charger and maintainer has all the features of our best selling Battery Tender® Junior, in a mountable water resistant package. This 800 milliamp battery charger is also shock and vibration resistant, perfect for all types of ATVs, personal watercraft, motorcycles, boats, or other recreational vehicles that may be exposed to the elements.

While compact in size, it's tough enough to keep your ride ready for its next adventure. The Battery Tender® 12V, 800mA weather resistant battery charger is designed for all lead-acid, lithium (LifePO4), and flooded or sealed maintenance free batteries (AGM and gel cell).

STAY CHARGED
This 800mA charger provides a full charge to your watercraft or vehicle battery before automatically going into float mode to maintain proper voltage levels without overcharging.    

CONNECT AND FORGET
With a low maintenance design, our universal vehicle charger and maintainer is compact, lightweight, and easy to operate, even in a small storage space for your convenience.

EXTENDED BATTERY LIFE
Compatible with lead-acid, flooded, lithium (LifePO4), and sealed maintenance-free batteries (AGM and gel cell), ideal for use in long-term storage to provide and maintain an optimal charge.    

WEATHER RESISTANT AND DURABLE
With all the features of our best-selling Battery Tender® Junior, in a mountable water-resistant package, this charger is perfect for marine or outdoor environments.

Dimensions: 4.35“ x 2.75“ x 1.5“
Weight: 1 lb (charger only)
Input: 120VAC @ 60 Hz
Output: 12 VDC @ 800 mA
AC Power Cord Length: 6 ft (18 AWG)
DC Output Cord Length: 4.5 ft (18 AWG)
DC Output Accessory Length: 1.5 ft
3-year warranty and lifetime customer support

Included in the box: 800mA battery charger, ring terminal, and alligator clip combo cable..

Ships via UPS or USPS Priority.  All "Open Box" items are excluded from our free shipping offer and are not returnable.

International Customers: Shipping charges reflect transportation costs only and do not include international brokerage fees, duties, GST/HST/PST, or other applicable taxes. Customers outside the United States may receive a separate invoice directly from the carrier for these additional charges.

If your order arrives damaged or appears defective, please submit a claim through our Customer Service Order Damage Form. Our team will review your submission and contact you within 24 hours (excluding weekends and holidays). All damage/defect claims must be reported within 48 hours of delivery.

An RMA# (Return Merchandise Authorization Number) is required for all returns.

Returns must be initiated through your Customer Account Portal within 10 days of delivery.

Returned items must be:

• Unused
• Uninstalled
• Unmodified
• Complete with all original packaging, hardware, manuals, and accessories

Returns not related to damage, defect, or an Atlantic Jet Sports shipping error are subject to a 20% restocking fee. Customers are responsible for return shipping costs.

Unauthorized returns will be refused at our shipping dock.

[View Full Return Policy & Return Instructions]

Non‑Returnable Items

The following items are final sale and not eligible for return, exchange, or store credit:

• Seat Covers
• Mat Kits, Mat Sheets
• Chin Pads
• Waterboxes
• Aqua Cart & Factory Zero Transportation/Beach Dollies, Totes, Display Carts, and all related Parts/Accessories
• Watercraft Stands
• Aqua Performance Watercraft Steps
• RRP Handlepoles
• Special Order Items
• Close‑Out Items

Electrical Components (non‑returnable):
Starter Motors, Regulators, Relays, CDI Units, Ignition Coils, Stator Coils, Stator Assemblies, Fuel Injectors.

All warranties are those of the manufacturer and not Atlantic Jet Sports. We will be happy to assist you in filing a warranty claim with the manufacturer, but please remember that the manufacturer determines whether a claim is approved or denied. Any modification to a product voids your warranty. All claims for consequential, physical, incidental, or special damage are hereby excluded.

Performance Product Use & Compliance Notice

Atlantic Jet Sports supplies high‑performance components engineered solely for closed‑course racing and sanctioned competition. These parts are not designed, tested, certified, or warranted for use on public waterways or on watercraft equipped with emissions‑controlled systems.

Installing or using these components may change the watercraft’s safety characteristics, emissions compliance, or legal classification. Using competition‑only products on public waterways may violate federal, state, or local regulations.

By purchasing, installing, or operating a watercraft equipped with these components, the user acknowledges and accepts full responsibility for all associated risks—including, but not limited to, personal injury, property damage, mechanical failure, or legal consequences. The user further agrees that Atlantic Jet Sports assumes no liability for damages arising from improper installation, misuse, or operation outside of competition environments.

For best performance and safety, Atlantic Jet Sports strongly recommends installation by a qualified technician experienced with high‑performance Personal Watercraft systems.

Product Installation Disclaimer

⚠️ Warning — Professional Installation Required

• Ensure the hull is fully ventilated and free of fuel vapors before using electric or battery‑powered tools. Failure to do so may result in fire, explosion, serious injury, or death.
• Disconnect the battery before performing any installation or maintenance to prevent accidental ignition, electrical shock, or unintended engine engagement.
• Allow the engine, exhaust, and surrounding components to cool completely before beginning work.
• No smoking, open flames, or spark‑producing devices should be present during installation.

This product is not intended for use on watercraft equipped with pollution‑control systems. Modifying or removing emissions‑related components may violate state or local laws and may render the watercraft illegal for use outside of competition.