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Help! My Car Battery Drains Overnight But Works Better In The Evening - Car Talk (2) - Nairaland

Nairaland ForumNairaland GeneralCar TalkHelp! My Car Battery Drains Overnight But Works Better In The Evening (6019 Views)

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Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 2cribz: 4:28pm On Dec 13, 2025
How many ah b this battery sir
Whois:
I'm having the same issue I bought another battery same thing. I think it could be my tracker . Coincidentally I came across this thread while I'm waiting for rewire to come help me diagnosis the issue
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by Tolupage(m): 5:37pm On Dec 13, 2025
moscobabs:
Hello Nairalanders,

For the past 3 weeks now I have been having some issues on my car battery. Most time I will park it in the night only to start it in the morning and found out the battery has drained but the surprise comes when I jump-start it with another battery and it works then drive it and stay in office for almost 11hrs, whenever I start the car it will work perfectly, the only time it drains is overnight.

Mech Engineers/ Rewires in the house, please what could have been the cause. Thank you very much.
I guarantee it's your alternator. 💯

Fix it before you buy new battery else, the new battery will be drained in 2 weeks
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by highoctane: 5:40pm On Dec 13, 2025
What of if the positive head terminal of the battery was removed, and after three days, the battery won't start?
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by Davidson39: 5:56pm On Dec 13, 2025
Consult the Oracle, seems awon iya using it for Uber/Bolt at night. Holy Ghost fire!
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by WeirdAlien: 5:57pm On Dec 13, 2025
One component in your car is more active at night.
First, when everywhere is dark, go 360° around your car (check interiors too) to see if any lights are on.
Second Remove the battery terminals before you leave it overnight. If it doesn't start normally in the morning buy new one. If it starts normally, continue troubleshooting...

Questions to ask -
* Did you recently fixed a new accessory? Sound system, tracker, immobilizer, OBD scanner, even a car charger for phone - anything plugged into the electrical port.
* Is there a top rubber cover over your battery terminals? If it gets wet due to condensation in the night, it could be grounding your battery and draining it.
* Examine the spot you always park the car overnight. Is it always cold or wet? This could also lead to the above.
* Is the battery old?? Old batteries struggle more in the mornings because cold nights weaken them.
* Do you leave your headlights on "auto" mode? They could get activated on the night due to aging relays and humidity. Lights are the highest power consumers in a car.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by delan40(m): 6:10pm On Dec 13, 2025
2cribz:
Nothing is wrong with your car
I was stressing myself for months.
Firstly battery charger chop me5k
I got frustrated and bought portable charger.
The moment I crank.even if it charges to 100 percent
It won't hold charge
I didn't stop there .I wasted anther 5k to refill the battery
It help power for just a day and returned back to its shittt.
It was then it dawned on me that all batteries sold in naija are super fake,coupled with the hot climate, short trips,traffic... just dave yourself the stress and buy another battery. For better performance. Pls go for 100 ah battery. It's around 90k to 100k,before it ws like 48k. But Almighty dolla don scatter everywhere. Buy a new battery..either rocket,solite, everstat, etc..100ah and give yourself 2years max. After 2 years from the day u mounted it,be preparing to buy another battery. That's the bitter truth.
K learnt the hard way. I sha thank God I no call any rewire or meko.becos those one go scatter your car. From starter, to its Coil,no its plugs sorry it's nozzles. Ah I forgot it's fuel pump.
Alaye go buy new battery. Wait small like January ending
This is the best advice. I had the same issue and when I changed my battery I gat plenty peace.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by ibtommy(m): 6:16pm On Dec 13, 2025
Awon 'iya aye' dey drive your car go meeting be that. You need serious prayer.
Jokes apart, go buy another battery. Tats the best solution.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by fashrola(m): 6:16pm On Dec 13, 2025
Whois:
I'm having the same issue I bought another battery same thing. I think it could be my tracker . Coincidentally I came across this thread while I'm waiting for rewire to come help me diagnosis the issue
Modern trackers uses less power (Sleep mode option) I guess you check with the installer and see if it has this function.

Or it should be wired igntion-switched instead of constant 12V source
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by booz(m): 6:18pm On Dec 13, 2025
Why not try disconnecting one of the terminals every night and reconnect in the morning to check what the issue is. Maybe your boot light or one of the inner lights doesn't go off.
moscobabs:
Hello Nairalanders,

For the past 3 weeks now I have been having some issues on my car battery. Most time I will park it in the night only to start it in the morning and found out the battery has drained but the surprise comes when I jump-start it with another battery and it works then drive it and stay in office for almost 11hrs, whenever I start the car it will work perfectly, the only time it drains is overnight.

Mech Engineers/ Rewires in the house, please what could have been the cause. Thank you very much.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by richeeyo(m): 6:18pm On Dec 13, 2025
Did you upgrade your infotainment to an android screen recently
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by crazygod(m): 6:27pm On Dec 13, 2025
If your car is between 2001 to 2005, just remove the battery head before you sleep. But if it's all this latest models, buy a new stronger battery.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by femi4: 6:41pm On Dec 13, 2025
moscobabs:
Hello Nairalanders,

For the past 3 weeks now I have been having some issues on my car battery. Most time I will park it in the night only to start it in the morning and found out the battery has drained but the surprise comes when I jump-start it with another battery and it works then drive it and stay in office for almost 11hrs, whenever I start the car it will work perfectly, the only time it drains is overnight.

Mech Engineers/ Rewires in the house, please what could have been the cause. Thank you very much.
Replace the battery..you wan use am for 10yrs
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by rafcrown(m): 6:56pm On Dec 13, 2025
Village people at work, they like to operate around that time,free drinks after meeting.Bitter kola 9, Alligator 🐊 🫑 🌶️ etc
kunyeo:
Are you sure witches are not using your vehicle at night?
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by strangest(m): 7:18pm On Dec 13, 2025
2cribz:
Nothing is wrong with your car
I was stressing myself for months.
Firstly battery charger chop me5k
I got frustrated and bought portable charger.
The moment I crank.even if it charges to 100 percent
It won't hold charge
I didn't stop there .I wasted anther 5k to refill the battery
It help power for just a day and returned back to its shittt.
It was then it dawned on me that all batteries sold in naija are super fake,coupled with the hot climate, short trips,traffic... just dave yourself the stress and buy another battery. For better performance. Pls go for 100 ah battery. It's around 90k to 100k,before it ws like 48k. But Almighty dolla don scatter everywhere. Buy a new battery..either rocket,solite, everstat, etc..100ah and give yourself 2years max. After 2 years from the day u mounted it,be preparing to buy another battery. That's the bitter truth.
K learnt the hard way. I sha thank God I no call any rewire or meko.becos those one go scatter your car. From starter, to its Coil,no its plugs sorry it's nozzles. Ah I forgot it's fuel pump.
Alaye go buy new battery. Wait small like January ending
LoL... Buy 100ah? Do you even know the Alternator size of his car?


As far as the battery is bigger that the alternator, it will remain undercharged


Highest a year, you will start looking for another battery...


You may even be surprised a 60ah battery will serve him better than a 75ah....
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 2cribz: 7:22pm On Dec 13, 2025
If its a 4plug...60ah i ok
If its a v6 and rest.65 ah is just 1 year max.
Na electeonics be battery
strangest:
LoL... Buy 100ah? Do you even know the Alternator size of his car?


As far as the battery is bigger that the alternator, it will remain undercharged


Highest a year, you will start looking for another battery...


You may even be surprised a 60ah battery will serve him better than a 75ah....
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by Ugosime: 7:49pm On Dec 13, 2025
Call your rewire to check what is on in your car, that is draining the battery down or once u park your car,remove the battery terminal of your car whenever you park it . If want to start your car again then you fixed the terminal back. Even you buy new battery it will drained it too
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 3kay945(m): 8:08pm On Dec 13, 2025
2cribz:
Nothing is wrong with your car
I was stressing myself for months.
Firstly battery charger chop me5k
I got frustrated and bought portable charger.
The moment I crank.even if it charges to 100 percent
It won't hold charge
I didn't stop there .I wasted anther 5k to refill the battery
It help power for just a day and returned back to its shittt.
It was then it dawned on me that all batteries sold in naija are super fake,coupled with the hot climate, short trips,traffic... just dave yourself the stress and buy another battery. For better performance. Pls go for 100 ah battery. It's around 90k to 100k,before it ws like 48k. But Almighty dolla don scatter everywhere. Buy a new battery..either rocket,solite, everstat, etc..100ah and give yourself 2years max. After 2 years from the day u mounted it,be preparing to buy another battery. That's the bitter truth.
K learnt the hard way. I sha thank God I no call any rewire or meko.becos those one go scatter your car. From starter, to its Coil,no its plugs sorry it's nozzles. Ah I forgot it's fuel pump.
Alaye go buy new battery. Wait small like January ending
Haa, wetin concern dead battery with coil , plugs etc. Since there wont be cranks.

Na so the driver novice reachhuh
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 3kay945(m): 8:13pm On Dec 13, 2025
Could it be that your vehicle clock alarm is set to activate during the night. ?

The day I noticed that my vehicle clock has alarm, I was surprised and have to look well to make sure it isn't set to trigger during the night.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 2cribz: 8:17pm On Dec 13, 2025
Sometimes its plugs. I plugs die finish e go kill battery...u go crank taya
3kay945:
Haa, wetin concern dead battery with coil , plugs etc. Since there wont be cranks.

Na so the driver novice reachhuh
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by Richie0001: 8:25pm On Dec 13, 2025
Remove the bulb inside the car trunk and see if it will be able to start the following day.
moscobabs:
Hello Nairalanders,

For the past 3 weeks now I have been having some issues on my car battery. Most time I will park it in the night only to start it in the morning and found out the battery has drained but the surprise comes when I jump-start it with another battery and it works then drive it and stay in office for almost 11hrs, whenever I start the car it will work perfectly, the only time it drains is overnight.

Mech Engineers/ Rewires in the house, please what could have been the cause. Thank you very much.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by jadekusibe: 8:55pm On Dec 13, 2025
Ur car battery issues lies with either boot,door or interior lights,run a very simple diagnostic test,by pulling out the fuse for boot, interior and door lights one after the other definitely one of the fuse will off the light that is ur problem see ur rewire or electrical technician to fix it
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by gloryman91(m): 9:08pm On Dec 13, 2025
CaptainFM1:
What is your office address?
No. 10, Mogaji Amusan Olosun Ojoo Arulogun Road, Ibadan Oyo State.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 3kay945(m): 9:17pm On Dec 13, 2025
2cribz:
Sometimes its plugs. I plugs die finish e go kill battery...u go crank taya
The battery is drained. If it can crank then possibly not drained battery issue cos the vehicle would have start.

Na vehicles that have other issues doesn't start at first crank or second that plugs issue will drain battery.

In this case, there is a parasite sucking the battery.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 2cribz: 9:49pm On Dec 13, 2025
U are not a mechanic pls
3kay945:
The battery is drained. If it can crank then possibly not drained battery issue cos the vehicle would have start.

Na vehicles that have other issues doesn't start at first crank or second that plugs issue will drain battery.

In this case, there is a parasite sucking the battery.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 3kay945(m): 10:00pm On Dec 13, 2025
2cribz:
U are not a mechanic pls
I might not be, but as a vehicle owner, I have experience. So matters of battery drainage shouldn't be only for mechanic talk.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by youngrichnigga: 10:08pm On Dec 13, 2025
Just on a light note, your village people are using it to run Uber/Bolt at night or having their town hall in the car, you need spiritual cleansing done on the car....call me for further details grin grin grin
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by ZolotuaLorenzo(m): 4:00am On Dec 14, 2025
fashrola:
Check the following

1. Are you using tracker and alarm system? Even the consumption maybe minimal, this can't be ruled out entirely, so check on it

2. Is your boot or doors fully closed? This can drain.your battery overnight too

3. Does your radio or multimedia player runs even when the car is turned off, ensure its properly switched off.

4. Check if your parking light knob is at off position

5. Another one that is hidden is your heater, that heats your back windshield.... It's always one of your hidden culprit too... This can be due to stuck relay or bad fuse

If these are checked and still having battery drain, then the next one is to get a thermal camera (Its expensive though) or rent one and use it to check the whole car early in the morning, ensure you don't start the car...: You can spot abnormal heat from components drawing current when they shouldn't, revealing hidden issues like a stuck relay, glove box light, fuse or module staying awake, even when things should be cool and off.

If you don tire to do all these troubleshooting, bro buy a battery isolator (Picture attached) and install it to save yourself the stress... Buy the one that comes with remote and you can attach it to your car key too, it can even work as security for your car too... It's sold on AliExpress or temu for less than 20k

No allow "rewire" come mess up more things in your car or you gonna learn the hard way
No 1. My car security system made me change two good batteries till I found out recently, that the idiot that installed it kept is set as "always on" , instead of to only be On when I turn on the ignition, my brother. God saved me. Till 2day my solite dey sosoliso dey go 😊
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by ZolotuaLorenzo(m): 4:04am On Dec 14, 2025
Whois:
I'm having the same issue I bought another battery same thing. I think it could be my tracker . Coincidentally I came across this thread while I'm waiting for rewire to come help me diagnosis the issue
It's the tracker, it's always on. Reset the tracker.

Dat stuff nearly finish me
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by jerobua: 8:25am On Dec 14, 2025
Parasitic drain on car battery are usually difficult to find and resolve.
My Solution
1.Check your alternator that it's functioning well
2. Buy a MANUAL CAR BATTERY ISOLATOR, check Jumia and TEMU. isolate your battery when you get home at night
3. Get a small car battery charger to fully charge your battery once on a while, charge your battery only when it's fully COOL.
4. After doing all these, if battery runs down, then get another ORIGINAL CAR BATTERY, let them test the internal resistance.
Best of luck
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 2cribz: 10:27am On Dec 14, 2025
Just to give u a reminder. Every car made from year 2000 till date,have an inbuilt immobiliser/security.

The moment u open or dismantle your radio,I don't mean the radio head,the radio complete with its casing,the security/immobiliser activates anti theft mode

The moment u remove your battery and reinstall the immobiliser/anti theft activates...that was what toyota and lexus did ...ao the ECU thinks the car is being vandalised..everywhere go lock..
From plugs to coils, to fuel,starter,alternator.
That is no movement.
If you put your key and the security lights keep blinking.. fear not.
Turn te key to position ON five times
Within 15seconds.
The immobiliser would reset ,then try to start groom it would start once.
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by 2cribz: 10:30am On Dec 14, 2025
Wrong .he is a novice. Make he no go buy baytery for small car. Buy 75ah batter with rating of 600+CCA and above,at least 650 cca....It's usually written on the box of the battery nd sticker.. If na v6 .from 75ah upwards if not,e go under charge
jerobua:
Parasitic drain on car battery are usually difficult to find and resolve.
My Solution
1.Check your alternator that it's functioning well
2. Buy a MANUAL CAR BATTERY ISOLATOR, check Jumia and TEMU. isolate your battery when you get home at night
3. Get a small car battery charger to fully charge your battery once on a while, charge your battery only when it's fully COOL.
4. After doing all these, if battery runs down, then get another ORIGINAL CAR BATTERY, let them test the internal resistance.
Best of luck
Re: Help! My Car Battery Drains Overnight But Works Better In The Evening by Louiscars: 3:06pm On Dec 14, 2025
isholapeter9:
Uhmmm 🤔 I'm having same issue too on my Toyota Corolla 012 but I was told it's a parasitic draining so I want to test with my friend battery before calling any rewire coz those guys can be dangerous sometimes when it comes to handling wiring system.
You still need to do the test, I recently had a Mercedes Benz S500 with the same issue and after doing the test it turns out the gateway module was causing that draw, a replacement was bought, vehicle tested and the use

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