Laptop N16Q1Won’t Charge! Whats wrong and any advice?

Hi, I have used accidentally my ebike charger which is 36v 2a charger (42v2a) instead of my original laptop charger (19v3.42A) charger

so basically the laptop is still working fine , it can switch on and do wtv uw on it and battery working normally ( draining slowly 😭😭)

but when i try to charge it with the original charger , it wont charge as there is no orange light charging status on the laptop neither on screen notification thingy

The original acer charger , I have tested with a voltmeter and there is voltage (19v) with current

I have also checked my Charger Driver / Battery Driver on PC and inspected the Internal Charging port and everything is seems normal.

Whats wrong and any advice?

I suspect probably the BMS of the battery is spoiled or smt

Or maybe theres a fuse inside the laptop?

or the capacitor is blown

[Edited the title to add model name ]

[Edited the thread to add issue detail]

Accepted answers

baozaboy

Laptop N16Q1 Won’t Charge – Repair Update

After accidentally using a 36V 2A e-bike charger instead of my original 19V 3.42A laptop charger, my Acer N16Q1 (TravelMate P249-G2-M) stopped charging properly. The laptop still works fine on battery power, but the charging light and notifications won’t come on when I plug in the original charger.

I tested the charger voltage, checked the battery driver, and inspected the charging port—all seemed normal. But using a higher voltage charger likely damaged the motherboard components related to charging.

In the end, I took it to a repair shop in Bangkok, and the repair cost around 2,500 baht. They fixed the charging issue by reparing the motherboard, and I also took the opportunity to upgrade the laptop myself with an SSD, added an NVMe SSD, and boosted the RAM from the original 4GB to 16GB + 4GB DDR4.

Now, the laptop works well in 2025 for normal everyday tasks. Gaming? I don’t dare to try it.

Lesson learned: Be very careful with chargers—using the wrong voltage can seriously damage your laptop’s motherboard, and repairs might cost more than the laptop’s worth.

All comments

Commodore_1995#

Hi! What is the exact model? Example AN515-55-58VH. About this problem, I would check the CI CHARGER!

billsey

A Google search seems to suggest the N16Q1 is actually a TravelMate P249-G2-M. That model has the power jack on the left side, and it's connected to the motherboard via a cable with the jack held in place using the hinge on that side. It's possible you have fried that cable, but much more likely the issue is on the motherboard since under 100W of power is not likely to have harmed the wires. The laptop is several years old (6th generation Intel, they are on 13th gen now) and likely not worth repairing. :(

Commodore_1995#

https://community.acer.com/en/discussion/comment/1152527#Comment_1152527

The problem is that he connected a 42v adapter. The output is measured in direct voltage or direct current (dc). It is greater than twice the 19v value of the original adapter.

billsey

Exactly. The high voltage is more likely to have harmed chips and other components on the motherboard than the wiring between the jack and the motherboard.

baozaboy

https://community.acer.com/en/discussion/comment/1153125#Comment_1153125

so how much does it cost to repair it?

baozaboy

soooo is there any solution to it?

baozaboy

hmm i understand but its great to keep one spare laptop just incase haha

baozaboy

do you still need it or nah

billsey

https://community.acer.com/en/discussion/comment/1194109#Comment_1194109

Likely more than the laptop is worth. You will probably have to replace the motherboard to repair it.

baozaboy

https://community.acer.com/en/discussion/comment/1194298#Comment_1194298

do you think the cost of the repair will decrease over the time?
like maybe 3 year later , i bring to shop for repair will be cheaper than now?

billsey

Not really, though over time you might be able to find a used one that you could pull the motherboard out of. Eventually they will get old enough that used ones will be hard to find though. At 6-7 years old I would think that replacement parts are as low as they will go.

GPL64

N16Q1

E5-475-30zc the connector wire going to LCD was shorted after fixing the connector wire the laptop won't start only battery charging light is on

Please help

billsey

You are asking your questions on too many threads. As I suggested in one of the others, ask the question in a new thread in the appropriate section for your Aspire.

baozaboy

Laptop N16Q1 Won’t Charge – Repair Update

After accidentally using a 36V 2A e-bike charger instead of my original 19V 3.42A laptop charger, my Acer N16Q1 (TravelMate P249-G2-M) stopped charging properly. The laptop still works fine on battery power, but the charging light and notifications won’t come on when I plug in the original charger.

I tested the charger voltage, checked the battery driver, and inspected the charging port—all seemed normal. But using a higher voltage charger likely damaged the motherboard components related to charging.

In the end, I took it to a repair shop in Bangkok, and the repair cost around 2,500 baht. They fixed the charging issue by reparing the motherboard, and I also took the opportunity to upgrade the laptop myself with an SSD, added an NVMe SSD, and boosted the RAM from the original 4GB to 16GB + 4GB DDR4.

Now, the laptop works well in 2025 for normal everyday tasks. Gaming? I don’t dare to try it.

Lesson learned: Be very careful with chargers—using the wrong voltage can seriously damage your laptop’s motherboard, and repairs might cost more than the laptop’s worth.

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