Batteries, Chargers & Monitors

The latest version of the famous Battery Tender®. Lucky for you (and your battery) the cost is the same. The enhancements to the original design are in the circuitry that ensures better charge absorption and a built-in 72 hour safety timer to protect a marginal battery from being overcharged. The display improvements tell the user that AC power is on, when it is charging, that the battery is 80% charged, that full charge has been attained, and when the unit is in “float” charge mode. Electrifying.12V, 1.25A.

Nice and hefty for jumping a motorcycle or other light vehicles. Durable clamps grab battery posts with authority. Made of 10 gauge polar/solar wire that stays flexible. May be just the thing to save that ride. 6'. Includes storage bag.

Know the health of your bikes charging system in real-time with this compact, waterproof, digital voltmeter. Reads tenths of a volt (12.6, 12.7, 12.8, etc) and is easy to install. Compact, easy to read, waterproof, vibration proof and dust proof.

Install with permanent double-sided mounting adhesive tape to attach to the side an instrument panel, triple clamp or fairing or use the removable (file or grind off) bosses for bolt-on dashboard installations.

Connect to any circuit that’s powered when your bikes’ key is in the ‘run’ position and you’ll see the battery’s voltage. Then hit the starter and the display will indicate the a slight voltage drop as the engine cranks over. And you’ll notice similar tenth-of-a-volt electrical fluctuations whenever a brake light, driving light, electric grips, horn or other electric load is added, and a correctly functioning charging system will stabilize the readout nearly instantaneously. Reassuring. But if you notice the system voltage is for some reason slowly dropping you’ve either added too much load, or the charging system isn’t working right, which is nice to know before unexpectedly finding yourself on the side of the road somewhere. Most bikes will run for some time if the charging system fails, so you can get to someplace better than a lonely roadside. A café, bike shop, motel, or home. Inexpensive peace of mind for the electrically paranoid.

Installation notes: Shortish 6” leads mean you’ll probably need add a bit of wire for most installations, and the display is bright enough to be read easily in direct sunlight so it may be overly bright at night…which can be adjusted/dimmed with nail polish or a thin fog of overspray. Specify Red, Green or Blue display color. Measures voltage from 3.5 to 30V. 1”x.6”x.7”.

A simple, lightweight, highly accurate way to measure and monitor the battery on your bike. Easy to install, too. Simply plug this indicator into an SAE connector hooked directly to your battery (sold separately) and the LCD displays voltage when the button is pressed or when initially plugged in. Works with any 12V Flooded, AGM and Gel batteries. Displays voltage range from 3V to 16V within +/-0.1 volt accuracy. Colored lights also illuminate red, yellow or green to indicate battery health.

Super-high density oxide plate design combined with NanoGel Electrolyte technology increases surface area, giving superior cranking amps, quicker charging, more power, less sulphation and twice the life expectancy of traditional batteries. Strong ABS case uses special top-cap design that makes this a true maintenance free battery, completely eliminating leakage and acid spills. 12V. Cranking power range (depending on model): 110-340A depending on application. Weight: 7.7-19 lbs. Size range: 5.27"-8"×2.7"–4.8"×4.13"-6.7". Air-shippable.

For model/fit applications, see:

Battery applications by motorcycle model and year

Advanced battery technology that works much better (and longer) than even the best conventional lead acid batteries. These batteries are more powerful and dependable. Cranking amp ratings are double to triple regular types. They have an 8 year design life, an ultra long shelf storage life and a low self-discharge rate—after sitting for months (without any trickle charge) it’ll start. Deep cycle reserve power provides sufficient amps for confident starts even when 70% discharged.

Odyssey batteries have superior vibration resistance, a tough ABS case, and are lighter, too. Air shippable and non-spillable “starved-electrolyte” design. Works right out of the box with no charging needed. The California Highway Patrol use these batteries because with the engine off they must run their flashing lights and radios. 12V 14Ah. Cranking power range (depending on model): 100-380A. Weight: 6-26 lbs. Size range: 5.43"–7.27"×3.11"–7.05"×3.98"×6.67".

Cannot ship internationally

For model/fit applications, see:

Battery applications by motorcycle model and year

Drop weight. Lithium technology with a tough carbon-fiber composite cases made these next-generation lithium-iron batteries weigh an astonishing 70-80% less than a lead acid battery. These advanced batteries recharge quicker than a conventional battery and hold a charge for an entire year without maintenance and with zero sulfation.

Environmentally friendly too with no explosive gasses during charging, no lead and no acid, just discharge and dispose when it reaches the end of a long service life (up to four times the life of a lead-acid battery). 12V 14-27Ah. Cranking power range (depending on model): 210-405A. Weight: 1.68-3.85 lbs. Size range: 5.83"-6.55"×2.6"-3.39"×3.46"-5.51".

For model/fit applications, see chart here.