Can I hook a charger to my battery while it's still hooked electrically?

Will it cause any issues? Without removing the cables.

 

I'm just going to remove the cables. Its easy enough, just trying to be lazy lol

 

Yes, you can.

 

Thanks! I've had trickle chargers on my boat batteries but this got me thinking.

 

There won't be any issues, I've used a Noco charger on my battery while in the vehicle. The main reason I end up taking it out is because I live in an apartment and have no outlets near my parking spot.

 

Just don't turn the ignition key on or to ACC with the charger hooked up. DC current normally flows Neg to Pos. When a charger is connected, the current in the battery is being pushed backwards to force the chemical reaction to be reversed (moving electrons from pos back to neg) when it is charging.

 

What??? Funny how the alternator charges the battery while running without any problems

 

I'm doing that right now to my mom's crv parked in my RV spot since it's not being driven

I use battery tender.

 

I do it all the time on my Z, a 2010 WITH 35K...

 

Harvard man are ya?
not MIT

 

Just leave them hooked up. I have on board 3 bank charger on boat and never disconnect anything. Just do not over charge. Most newer chargers will drop to trickle when charge hits a certain point. My boat charger is digital and will condition batteries after full charge.

 

I thought current always flows from positive to negative and electrons was negative to positive? I also know you can turn on the key because I have used a charger to start a car many times. My charger in fact has a switch to slide to start when you are using it to start the car with a dead battery.

 

I've used the charger to start my old Chevelle many times.

 

I put my truck on the charger when I’m downloading a new tune on my bully dog. They actually recommend it. GTG!

 

Been common practice to start dead batteries with the charger for decades. Most commercial shop chargers even have a high Amp boost mode, just for that purpose.
I keep the little “battery maintainer” on my boat, truck, back up generator and my emergency fire pump. It’s not an issue.

 

lol.

 

Nope, hook it up with the cables on. I do it to my Camaro's every winter.

 

The terminal of the battery labelled "+" is actually at a higher potential than the terminal labelled "-" (i.e. is accurately labelled). When the circuit is completed, electrons flow out of the negative terminal of the battery, lose potential energy as they transit the circuit, and return to the cell at the higher potential positive terminal. This means that the direction of current determined on circuit diagrams (from (+) terminal to (-) terminal) would actually be opposite the real direction of flow of electrons.

Reference https://www.physicsforums.com/threads/direction-of-electron-flow-with-real-batteries.690076/

 

You can skip to the bottom and look at the picture and the last sentence, if that makes it easier for you. LOL

Working Principle of Lead Acid Battery
When the sulfuric acid dissolves, its molecules break up into positive hydrogen ions (2H+) and sulphate negative ions (SO4—) and move freely. If the two electrodes are immersed in solutions and connected to DC supply then the hydrogen ions being positively charged and moved towards the electrodes and connected to the negative terminal of the supply. The SO4— ions being negatively charged moved towards the electrodes connected to the positive terminal of the supply main (i.e., anode).

Each hydrogen ion takes one electron from the cathode, and each sulphates ions takes the two negative ions from the anodes and react with water and form sulfuric and hydrogen acid.

The oxygen, which produced from the above equation react with lead oxide and form lead peroxide (PbO2.) Thus, during charging the lead cathode remain as lead, but lead anode gets converted into lead peroxide, chocolate in colour.

If the DC source of supply is disconnected and if the voltmeter connects between the electrodes, it will show the potential difference between them. If wire connects the electrodes, then current will flow from the positive plate to the negative plate through external circuit i.e. the cell is capable of supplying electrical energy.

Chemical Action During Discharging
When the cell is full discharge, then the anode is of lead peroxide (PbO2) and a cathode is of metallic sponge lead (Pb). When the electrodes are connected through a resistance, the cell discharge and electrons flow in a direction opposite to that during charging.

The hydrogen ions move to the anode and reaching the anodes receive one electron from the anode and become hydrogen atom. The hydrogen atom comes in contacts with a PbO2, so it attacks and forms lead sulphate (PbSO4), whitish in colour and water according to the chemical equation.

The each sulphate ion (SO4—) moves towards the cathode and reaching there gives up two electrons becomes radical SO4, attack the metallic lead cathode and form lead sulphate whitish in colour according to the chemical equation.

Chemical Action During Recharging
For recharging, the anode and cathode are connected to the positive and the negative terminal of the DC supply mains. The molecules of the sulfuric acid break up into ions of 2H+ and SO4—. The hydrogen ions being positively charged moved towards the cathodes and receive two electrons from there and form a hydrogen atom. The hydrogen atom reacts with lead sulphate cathode forming lead and sulfuric acid according to the chemical equation.

SO4— ion moves to the anode, gives up its two additional electrons becomes radical SO4, react with the lead sulphate anode and form leads peroxide and lead sulphuric acid according to the chemical equation.The charging and discharging are represented by a single reversible equation given below.

The equation should read downward for discharge and upward for recharge.

 

Shit just got weird. Its ok to have it plugged in, also ok to turn the key to on. No matter how much copy/paste we stuff in here.

 

Electron vs "conventional" current flow, what's your point here exactly? Any battery charger worth buying should be able to maintain the proper charging voltage whether a few extra electronic devices turn on or not. Also, if you're going to copy an entire article you should probably give them a little credit...

 

How many engineers does it take to hook up a battery charger?








29
28 to figure out the flow of ‘lectrons, and 1 to attach the clips

 

Love this forum, always good for a laugh!

 

Just don't hook another charger up to the current charger and flip the neighbor's light on in an effort to charge your battery quicker. The Sun will discharge too much plasma and cause a blackout in NY.

It happened recently.



Google it.

 

I want to know why my pool room ceiling fan comes on when my neighbor opens his garage door

 

That’s only if they can find the battery.