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12V, 8/2A Selectable Battery Charger & Maintainer
Improve the battery life of your automobile or power sport with the Battery Tender® 8 Amp / 2 Amp Selectable Battery Charger and Maintainer! Unlike typical trickle chargers that can overcharge a battery and cause damage when connected for too long, this innovative charger and maintainer provides a full charge before automatically switching to float mode to keep your battery optimally charged.
Fully Selectable
With the push of a button, quickly switch charging options to customize the charge to the needs of your battery. This state-of-the-art charger and maintainer allows you to choose between 8 amp or 2 amp charging to your lead-acid, AGM, or Lithium (LiFePO4) battery, combining the capabilities of multiple chargers in one compact, garage-friendly design. The LED display indicates which voltage the charger is set to, so you can always ensure a proper charge.
High Powered
Modern vehicles come standard with more electronics than ever, making it crucial for your battery application to meet the demands of today's vehicles. Packed with up to 8 amps to quickly recharge and maintain your battery, our device is equipped with a Microcontroller with Infinite Sequential Monitoring (ISM) that functions as its brain to ensure the proper level of power is sent to the battery to keep it operating at peak performance.
Specifications:
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200 14th Avenue Southeast, St. Petersburg, FL 33701
7C San Bartola Drive, Saint Augustine, FL 32086




What a great little piece of tech - I don't know how we got by without it in the past. No more guessing how full the holding tank is or having to clean icky tank senders. This little bluetooth RADAR sending unit mounts on top of the tank and connects wirelessly to our Victron Cerbo.
Setup is super easy, push the button on the unit so it can calibrate to the tank then enable bluetooth and set up your rank dimensions on your Cerbo. It's as easy as that.
We've had it installed and running for about two weeks now and couldn't be more pleased (We like it enough that I ordered a second one for our water tank.)
Lots of wiring - no leaks! Be sure to run ALL the wires through BEFORE completing the run!
Installed on Yanmar 4JH57 engines with Zeus Controllers - HOLY WOW power. Losing some power at top end but overall very satisfied. Will do a long term review later. Talk about power - hope to never need my generator again!
We bought these boots in 2022, and are buying new ones 3 years later. We love the design and the fact that they are easy to remove for inspection of the rig.
Review for electrical system components:
• Victron Lithium Battery 24VDC 300Ah NG Smart LifePO4 (x4)
• Victron Lynx Smart BMS 500 NG (M10)
• Victron Lynx Distributor w/M10 Terminals (x2)
• Victron MultiPlus-II 24/5000 120-95 120V (x2)
• Victron Phoenix Smart IP43 Charger 24/25 (1+1) 120-240VAC (x5)
• Victron Cerbo GX MK2 w/ Victron GX Touch 70 Flush Mount Display
• Z Bar - Class T battery link Bundle w/ Blue Sea 5119 300AMP Class T Fuse (x4)
• Victron Orion XS 1400 DC-DC Battery Charger (x2)
• Victron SmartSolar MPPT Charge Controller - 100V - 30AMP - UL Approved (x4)
Complete upgrade of my Irwin 54 Sloop electrical system –
Phase 1 – Remove 9KW generator, install 30KW LifePO4 battery system, inverter chargers, battery chargers, etc. wired for worldwide shore power capability to ABYC standards. Installation made possible with guidance and support from Andre Cormier and The Yacht Rigger.



