Battery Tender LCD Voltage Indicator w/USB Charging Adaptors - 081-0159

The Battery Tender LCD Voltage Indicator with USB & USB-C Charging Adaptors (part number 081-0159) is a dual-function SAE quick disconnect accessory designed for any 12V battery-powered vehicle — motorcycles, ATVs, cars, trucks, boats, RVs, or powersports equipment that already has a Battery Tender ring terminal harness installed. In a single compact unit, it delivers a real-time LCD battery voltage readout alongside simultaneous USB-A and USB-C device charging, making it an indispensable tool for riders and drivers who want to monitor battery health and keep devices powered without hunting for a separate outlet.

Key Features & Benefits

• Real-Time LCD Voltage Display: Unlike simple LED color indicators, the LCD screen shows your actual battery voltage as a number, so you can track battery state precisely during charging sessions, monitor voltage drop under load, and confirm that your Battery Tender charger is holding the correct float voltage — critical for seasonal storage and long-term battery health.
• Dual USB Charging — Up to 3 Amps Total: A USB-A port and a USB-C port provide charging output for phones, tablets, GPS units, and accessories directly from the vehicle's 12V battery. Both ports can deliver full-load output simultaneously without power sharing, so you never have to choose which device charges first.
• USB-A Quick Charge 3.0 Support: The USB-A port supports QC 3.0 at 5V/3A, 9V/2A, and 12V/1.5A — meaning compatible smartphones charge significantly faster than with standard 5V adapters.
• USB-C Fast Charging: The USB-C port supports 5V/3A, 9V/2.22A, and 12V/1.67A output profiles, covering modern smartphones, earbuds, and accessories that rely on USB-C power delivery.
• SAE J563 Quick Disconnect Compatible: Connects directly to any existing Battery Tender ring terminal harness or SAE quick disconnect system. No wiring, no tools — just plug in and the unit sits inline, monitoring battery state while charging your devices at the same time.
• Broad Battery Tender Ecosystem Compatibility: Works with the full Battery Tender SAE quick disconnect lineup — Junior family, Plus family, Weather Resistant, Junior Multi-Chemistry, WaveCharge Standard line, and any SAE J563-compatible charger or accessory.
• Compact, Mountable Design: Includes a mounting bracket and handlebar clamp mount so the LCD display stays visible and the USB ports remain accessible whether the unit is on a motorcycle handlebar, in a garage, or on a bench.
• 1-Year Limited Warranty: Backed by Battery Tender's 1-year limited warranty from Deltran, the Florida-based manufacturer behind the Battery Tender brand since 1965.

Specifications

• Part Number: 081-0159
• Brand: Battery Tender (Deltran)
• Input: 12V SAE quick disconnect (SAE J563 two-pin connector)
• Display: LCD — real-time battery voltage readout
• USB-A Output: QC 3.0 — 5V/3A, 9V/2A, 12V/1.5A
• USB-C Output: 5V/3A, 9V/2.22A, 12V/1.67A
• Total Charging Output: Up to 3 Amps (both ports simultaneously, no power sharing)
• Battery Compatibility: Most 12V batteries
• Dimensions: 3.34" (L) × 1.47" (W) × 0.84" (H)
• Weight: 0.84 lbs
• Warranty: 1-Year Limited
• Origin: DeLand, Florida (Deltran / Battery Tender)

Fitment

This accessory is not vehicle-specific by year, make, or model — it is compatible with any 12V battery application where a Battery Tender SAE quick disconnect ring terminal harness is already installed. Common applications include:

• Motorcycles and sport bikes
• ATVs, UTVs, and off-road powersports vehicles
• Passenger cars and trucks
• Marine vessels and boats
• RVs and campers
• Golf carts and small utility vehicles
• Classic and collector cars in storage

Requirement: The vehicle or battery must already have a Battery Tender ring terminal harness or SAE J563-compatible quick disconnect lead installed. This unit plugs into that existing harness — it does not replace a charger and is not a standalone battery maintainer.

What's in the Box

• LCD Voltage Indicator with 12V SAE quick disconnect input and 3A USB-A / USB-C charging outputs
• Mounting Bracket
• Handlebar Clamp Mount

Why Buy from ThreePiece.us

ThreePiece.us ships every order with free shipping — no minimum, no package exclusions on accessories like this one. If you need to spread out your purchase, Affirm financing is available at checkout so you can get the gear you need now. Have questions about whether this unit works with your existing Battery Tender setup? Our team is reachable at 813-535-5801 and is happy to help you confirm compatibility before you order.

Frequently Asked Questions

Do I need a Battery Tender charger plugged in to use the LCD voltage display?

No. The unit draws power directly from your 12V battery through the SAE quick disconnect harness, so the LCD will display battery voltage whether a charger is connected or not. This makes it useful for spot-checking battery voltage anytime the harness is installed.

Can both the USB-A and USB-C ports charge devices at the same time?

Yes. According to Battery Tender's product documentation, both ports can deliver their full-load output simultaneously — there is no power sharing between ports, so neither device is throttled when both are connected.

Is this compatible with my older Battery Tender Junior or Battery Tender Plus charger?

Yes. This accessory uses the SAE J563 two-pin connector standard, which is compatible with all Battery Tender SAE quick disconnect chargers and accessories, including the Junior family, Plus family, Weather Resistant models, Junior Multi-Chemistry, and WaveCharge Standard line.

Does this unit include a mounting option for handlebars?

Yes. The box includes both a mounting bracket and a handlebar clamp mount, so you can position the LCD display where it is easy to read on a motorcycle or ATV without additional hardware.