What is a motorcycle battery tender?

What is a Motorcycle Battery Tender?

Yesterday, I was charging my motorbike battery while storing it for winter. I saw new riders and was amazed when they saw me using a small brick-like charger. And then I thought, why shouldn’t I post an article about battery tender for beginners? 

A battery tender is the 1.5 amp intelligent charging device that comes with a microprocessor that protects your battery from short circuits while charging overnight. Although it’s an inexpensive way of charging, you can’t jumpstart your motorbike battery with the battery tender. 

Let’s look at what it means for you and what you can do about it.

While writing this post, I leave no stone unturned to understand how the battery tender works and how you can choose one for yourself. 

What is a Motorcycle Battery Tender? 

The motorbike battery is indeed the most crucial part of your motorbike, which you can’t ignore. 

And thus, to protect your battery from the dead, you might need a battery tender. 

Motorbike tender is the intelligent battery charging device that operates in the 1.5 amp and was launched by Deltran in 1965. 

From 1965 to 2022, the motorbike tenders were changed entirely. 

Before 1965, people used trickle chargers that weren’t safe and could short circuit when charging overnight. 

And fortunately enough, the motorbike tender comes with a microprocessor that automatically turns off the battery tender once your motorbike battery is fully charged. 

I seriously can’t express the value of this small microprocessor behind protecting my motorbike battery for years. 

And that’s why experts always recommend going with a battery tender that comes with an intelligent microprocessor or auto-adjust amperage and clear reading LED lights. 

The LED lights reflect your motorbike charging status in various models, which I think is crucial for any rider. 

However, keep in mind that you can’t jumpstart your motorbike battery with the battery tender. And to jumpstart your motorbike battery, you might need a trickle charger which I think is not safe unless you’re a technician. 

Why Should You Choose Motorcycle Battery Tender? 

So far, you understand what battery tender is; now the question arises, why should you choose motorbike battery tender? 

You may not want to spend bucks on a motorbike battery tender; believe me, spending dollars on a battery tender is the best investment for your motorbike. And here is why I think this. 

Why should you choose a motorbike battery tender: Details:
It comes with a microprocessor. The microprocessor protects your motorbike battery from short circuits. 
Auto-switch-off feature. The battery tender will stop charging once your motorbike battery is fully charged. 
It comes with a battery status indicator. The battery tender shows your battery status. 
Zero battery current draw. Battery tenders draw out zero or minimal current when AAC power is disconnected. 
Protect your battery from sulfation. You could actually protect your battery from sulfation with a motorbike tender. 
Protect your battery from the parasitic drain. Battery tender charges your motorbike battery if ever it loses charge and then after changing it will automatically turn off. 

It Comes with Microprocessor: 

A battery tender is not only limited to charging your motorbike battery, but it also protects your battery from the short circuit. 

Generally, other motorbike chargers supply the same voltage throughout all time. No matter if your battery is drained or wholly charged. 

In simpler words, an ordinary charger can short circuit your battery, and even in the worst case, it can explode your motorbike battery.

Auto-Switch-off Feature: 

Along with the microprocessor, the motorbike battery tender also comes with an auto-switch-off feature. 

This means the battery tender will stop charging once your motorbike battery is fully charged. 

Thanks to the microprocessor, you can leave your motorbike charging overnight through the battery tender. 

It Comes with Battery Status Indicator: 

Honestly, I love the transparency which my battery tender offers me.

Like my battery tender, most of the battery tender comes with an intelligent indicator that indicates your motorbike battery status every time. 

Think in this way, you can protect your motorbike battery from any unfortunate situation if you know your battery status already. 

Zero Battery Current Draw: 

You may not know this, but battery tender is designed so that they don’t draw electric current from the battery while AAC power is disconnected. 

Protect your Battery from Sulfation: 

Before understanding this point, you must understand the meaning of sulfation. 

Sulfation is when sulfur is present in a motorbike battery as acid water accumulates on the lead plate. This sulfation causes the motorbike battery to discharge slowly, and within 3 months, you’ll notice your motorbike battery drain significantly.

All lead batteries do this, and it’s an inevitable process. Still, with the motorbike battery tender, you could protect the motorbike battery from sulfation. 

Parasitic Drain: 

Have you ever noticed your motorbike battery drained when riding a motorbike after storing?

This happened because of the parasitic drain. 

Parasitic drain is the phenomenon in which your motorbike devices start to absorb charges even if they aren’t started. And you could protect these phenomena by battery tender. 

Battery tender charges your motorbike battery if ever it loses charge and then after changing it will automatically turn off. 

Click here to read the wikiHow article discussing some ways by which you can find a parasitic drain on your batteries.

What Do Motorcycle Battery Tenders Do? 

So far, you understand why you should choose a battery tender to charge your motorbike battery. But have you ever wondered what a motorbike battery tender does? 

A motorbike battery tender is an intelligent charging device that charges your motorbike battery without any short circuit. The battery tender protects the motorbike tender from sulfation and parasitic drain thanks to microprocessors and an auto-switch-off feature. Also, motorbike tenders offer you to know motorbike status. 

In simpler words, you can expect a motorbike tender to charge your motorbike battery without any short circuit. 

But please remember, you can’t use a motorbike tender to jumpstart your motorbike battery. And in this case, you may need a trickle charger. 

When to Use Motorcycle Battery Tender? 

They say timing is everything, and this is even more true for battery tender too. 

Experts suggest using or connecting motorbike tender with motorbike battery once your motorbike battery discharges slightly or you feel sluggish light when riding. Or you can even connect a motorcycle battery tender to your motorbike when storing for several months in winter. 

Now you know why and when you should use a battery tender. 

How to Use Motorcycle Battery Tenders? 

Before connecting the battery to your motorbike battery, experts recommend having soap and water if the battery slips to your skin. 

And make sure you’re wearing full sleeves and protection glasses before maintaining connection. 

Now locate the battery post and figure out which post you need to be grounded or connected with the chassis. 

  • For the negative grounded motorbike, you need to connect the positive terminal of the battery tender (red in color) with the positive post of the motorbike battery. 

And don’t forget to connect the negative terminal with the chassis or simply connect it with the heavy iron of the frame. And it’s advisable to not connect the negative wire with the fuel line or any combustible part. 

  • For the positively grounded motorbike, connect the negative post with the black or negative part of the motorbike tender. And connect the red or positive wire with the chassis. 

Now you will observe lights are bleeping. I recommend seeing the motorbike tender manual to see the exact meaning of light. 

As different manufacturers have different light indicators.

Also, read my previous post where I discussed how the motorcycle battery charge. Click here to read.

Frequently Asked Questions:

Why motorcycle tender comes with a microprocessor?

Battery tender comes with a microprocessor that protects your motorbike battery from short circuits. 

Why motorbike tender comes with an auto-switch-off feature?

The motorbike tender auto-switch-off feature helps the battery tender to stop charging once your motorbike battery is fully charged. 

What is a parasitic drain?

Parasitic drain is the phenomenon in which your motorbike devices start to absorb charges even if they aren’t started. And you could protect these phenomena by battery tender. 

What does a motorcycle tender do?

A motorbike battery tender is an intelligent charging device that charges your motorbike battery without any short circuit.

When you should use a motorcycle battery tender?

Experts suggest using or connecting motorbike tender with motorbike battery once your motorbike battery discharges slightly or you feel sluggish light when riding

Final Verdict: 

What is a motorcycle battery tender? A battery tender is the 1.5 amp smart charger device that comes with a microprocessor that protects your battery from short circuits while charging overnight. While it’s an inexpensive way of charging, you can’t jumpstart your motorbike battery with the battery tender. 

I’ve already mentioned the use of motorbike tender and the way you can use battery tender safely.