How To Connect A Trickle Charger To A Car Battery

Sometimes, it often rewards one to observe safety, especially with machines and vehicles. And matter of fact, this can often be forgotten by a good number of people because even though vehicles like cars—even car batteries—have very detailed manuals nowadays.

But, believe it or not, people can often forget about them and rush it, expecting a quick and easy solution process fit for our age and time of convenience.

Not passing on judgment right here and there, but perhaps you do not want to be in the unfortunate end of the situation, especially with regards to fast car battery charge-ups gone wrong like gas leaks and on the extreme end explosions that equal a Michael Bay Transformers fantasy (just kidding, though it is plausible).

Speaking of charging car batteries, a great way to avoid this is through the use of what is known as a “trickle charger” (slow chargers) and this article can guide you on how to connect a trickle charger to a car battery.

So, as said above, a “trickle” (do not ask me how they use this term) is a type of car battery charger that does its function of charging through a relatively low amped range, leading people to label them as relatively steady but rather slow (especially if you are used to the fast charging process).

Also stated above is the recommendation of safety and a trickle charger can do that with its steady and slow rate of charging and can help prevent overcharging. You can connect a trickle charger to a car battery through the use of the trickle charger itself and some alligator or steel clips and a power cable.

This process is relatively easy to other chargers (I am looking at you, expensive marine battery chargers). That said, if you want a little bit more detailed breakdown of the process, so please check out the rest of this article to cover your bases.

Car Battery Trickle Charger Connection Essentials

All right, let us dig right and cover our bases. For materials, please secure the following:

1. Your Car Battery That Needs Charging
2. A Trickle Charger
3. A set of steel clips or clips strong enough to hold
4. A Power Cable

The materials should be easy enough to obtain and gather up. The first crucial step of the process is to turn off your car and appliances that are connected to it.

Given this, it is of paramount importance that we observe some safety markers such as this reminder:

Well-ventilated areas and spaces must be a top priority (especially for gas leaks)

Inform people who may be affected within range to take caution of your task

Suitable location or ground platform that could be a frame that is not corroded with oils

Explosive precaution is usually on the use of the negative terminal of the battery.

All right, let us move on. You can now set an appropriate amp and volt range for your car battery. Next, you can use those steel clips (some use alligator clips) and look for their positive (+) and negative (-) colors. Positive will usually be red and negative will usually be black.

Going further, attach these clips to their respective terminals (the importance of a power cable): red clip cables go to positive terminal and black clip cables go to the negative terminal. You can now turn on the charger and let it do its job.

Is Trickle Car Battery Charging Safe?

The basics of battery charging usually go back to similar ways of producing the end result. That is, they are there to supply a “current” or a stream of flow in order for the battery cells to feed themselves and regain a given amount of energy. This said, a lot of chargers nowadays have been getting upgrades (and for the better too, brother).

Some chargers have been on the spectrum of automatic or manual. The types labeled as “automatic” are often taken as more innovative because they can observe ideal charging curves and can switch themselves off once reached. For that, they are often referred to as “smart chargers”.

The ones that are ‘manual” can often fall under chargers that constantly supply a current of voltage without sensitivity to the battery. They are not labeled as dumb, but automatic “smart” chargers are considered much, much safer for your charging needs.

Read our related post here.

How To Know If Trickle Car Battery Connection Is Smooth?

The answer to that will be dependant on certain factors and some updates from research. On a considerable note, a battery that is discharged fully can take about a good 20 or so hours to go about a trickle charge process. Some other factors that affect this process are your car’s own battery capacity.

This then can be taken to account especially on how much amp and voltage your given car battery can take during recharge or discharge or the charging process, as a whole. A really good trickle charger can help the process in terms of efficiency, but a car battery type matters much in terms of this.

With some examples, a car battery with some 30-amps on it but has a capacity to reserve energy around the numbers of 60 could take a good 1 hour (or less depending on the charger).

In the converse, a battery that can take a reserve energy capacity of 60 but equip with a 2-amp charge could take a heavy 20 hours on a trickle charge process. Again, please observe some data and meters on this for the best results (as results do vary).

Also, you might be wondering if overcharging can be an issue—it can. By the way, undercharging can also have its own fair share of issues (but that is for a different read up).

With regards to overcharging, some of the worse problems can often come from manual chargers that supply a constant current of energy. Without monitoring data in their system, you have to observe them in order to ensure a result.

The automatic (smart types) chargers often have this process secured in their internal wiring. But, overcharging can still be an issue even at the expense of an advanced trickle charger, so please do monitor as you go through the process.

All that said, it is hoped you have gained some insights from these tips on how to connect a trickle charger to a battery.

Back to homepage.