If you own a Lenovo IdeaPad, Yoga or V-series notebook, chances are your laptop was shipped with a compact
20V 3.25A 65W AC adapter. This power rating is very common on everyday Lenovo systems used for work, study and travel.
When the original charger is lost, damaged or starts to fail, choosing the correct replacement is essential for safety and long-term reliability.
In this article we take a closer look at our
20V 3.25A 65W Lenovo 4.0 × 1.7 mm Plug-Top (one-piece) adapter charger, explain what “plug-top” means, and show you how to confirm that it is compatible with your Lenovo laptop before you order.
1. Product overview
This Lenovo-compatible adapter is designed as a direct replacement for many 65W chargers used on Lenovo IdeaPad, Yoga and V-series laptops.
It uses the standard 20V output voltage and provides up to 3.25A of current, for a total power output of 65W.
This is the same rating you will find on the majority of original 65W Lenovo adapters.
- Input: 100–240V ~ 50–60Hz (worldwide mains compatibility)
- Output: 20V ⎓ 3.25A (65W)
- Connector size: 4.0 mm (outer) × 1.7 mm (inner) round DC plug
- Colour: Black
- Package: 1 × Lenovo-compatible charger
- Warranty: 12 months + 30-day return policy
Important: this is a high-quality compatible replacement charger for Lenovo laptops. It is not manufactured by Lenovo itself.
2. What is a “plug-top / one-piece” Lenovo adapter?
Unlike larger “brick-style” laptop chargers where the power brick sits in the middle of the cable, this model is a
plug-top or one-piece adapter.
The AC plug and the power conversion electronics are in a single compact housing that plugs directly into the wall socket, with only the DC cable running to your laptop.
That design offers a few advantages:
- Less cable clutter – no power brick on the floor or hanging in the air.
- More portable – easy to fit into a backpack or laptop sleeve for commuting and travel.
- Simple replacement – just plug it into the wall and the laptop, no separate mains lead to forget.
If your original Lenovo charger was a compact plug-top design with a 4.0 × 1.7 mm round connector, this one-piece adapter will feel very familiar.
3. Supported Lenovo part numbers
Lenovo uses many different part numbers for chargers that are electrically identical.
Our 65W 20V 3.25A adapter is designed to replace a wide range of these FRU / P/N codes, including (but not limited to):
01FR037, 01FR040, 01FR051, 01FR139, 01FR140, 01FR142, 01FR143, 01FR144, 01FR145, 01FR146, 01FR147, 01FR148,
01FR150, 01FR151, 01FR153, 01FR159, 01FR160, 35045524, 5A10J40449, 5A10J40450, 5A10J40451, 5A10K78736,
5A10K78738, 5A10K78739, 5A10K78742, 5A10K78744, 5A10K78745, 5A10K78746, 5A10K78747, 5A10K78748, 5A10K78749,
5A10K78751, 5A10K78752, 5A10K78753, 5A10K78754, 5A10K78755, 5A10K78756, 5A10K78757, 5A10K78761, 5A10K78762,
5A11H02883, 5A11H02891,
ADLX65CCGA2A, ADLX65CCGB2A, ADLX65CCGC2A, ADLX65CCGE2A, ADLX65CCGG2A, ADLX65CCGI2A, ADLX65CCGK2A,
ADLX65CCGR2A, ADLX65CCGU2A,
ADLX65CDGA2A, ADLX65CDGB2A, ADLX65CDGC2A, ADLX65CDGE2A, ADLX65CDGG2A, ADLX65CDGI2A, ADLX65CDGK2A,
ADLX65CDGR2A, ADLX65CDGU2A,
ADLX65CLGA2A, ADLX65CLGB2A, ADLX65CLGC2A, ADLX65CLGE2A, ADLX65CLGG2A, ADLX65CLGI2A, ADLX65CLGU2A,
ADLX65NCC3A, ADLX65NDC3A, ADLX65NLC3A,
GX20L29354, SA10M42740, SA10M42747, SA10M42760…
If the label on your original charger shows one of these numbers and the rating 20V ⎓ 3.25A 65W, this plug-top adapter is a suitable replacement.
4. Compatible Lenovo laptop series
This 65W 4.0 × 1.7 mm charger supports a very broad range of Lenovo notebooks in the IdeaPad, Yoga and V-series families, such as:
- Lenovo IdeaPad – IdeaPad 1, 3, 5, 100, 110, 130, 310 / 310S, 320 / 320C / 320S, 330 / 330S, 510 / 510S, 520 / 520S, 530S, 710S, 720S, L3, L340, S145, S340, S530, S540 and various Slim 3 generations.
- Lenovo V-Series & B-Series – B320, B330, B330S, B50, B580, V110, V14 / V15 / V17 (G1, G2, G3, G4, Gen 5 and ABA / IAP / IRU variants), V145, V145T, V155, V310, V320, V330, V340.
- Lenovo Flex & Yoga – Flex 4 / 5 / 6, IdeaPad Flex 5 (including 14″ and 15″/16″ ALC/ABR/IRU variants), Yoga 330, 510, 520, 530, 710, 720, S740 series.
- Other models – some Lenovo Legion V-series entry models and additional regional variants that ship with a 65W 20V adapter and 4.0 × 1.7 mm tip.
Because Lenovo frequently updates model numbers and regional codes, we always recommend confirming compatibility using the checklist below instead of relying on series name alone.
5. Compatibility checklist: 4 things to verify before ordering
1) Voltage and wattage
- On the label of your original adapter, confirm that the output voltage is 20V and the power rating is around 65W (20V 3.25A).
- If your original charger is rated for a different voltage (for example 19V or 12V), this 20V adapter is not suitable.
2) Connector size – 4.0 × 1.7 mm
- Check that your existing charger uses a round barrel connector with approximately 4.0 mm outer diameter and 1.7 mm inner diameter.
- Visually compare the plug to the product photos. The tip must look identical and fit snugly into the DC jack on your Lenovo laptop.
3) Part number
- If you can see an FRU or P/N such as ADLX65CCGC2A, GX20L29354 or one of the other codes listed above, you can match it directly against the compatible part-number list on the product page.
4) Laptop model
- Look at the model sticker on the bottom of your laptop (for example IdeaPad 3 15ADA7, V15 G3 ABA, Yoga 520).
- Check that this model or series appears in the compatible model list. If you are unsure, send the model name and a photo of your original adapter label to customer support for a quick verification.
6. Why a quality replacement matters
There are many very cheap laptop chargers available online, but not all of them are designed or tested to meet Lenovo’s safety standards.
A low-quality adapter may introduce risks such as unstable voltage, excessive ripple noise, overheating or poor insulation.
These issues can shorten the lifespan of your laptop and, in the worst case, cause serious damage.
Our 20V 3.25A 65W Lenovo 4.0 × 1.7 mm plug-top charger is built with:
- Over-voltage, over-current and short-circuit protection to safeguard your device.
- Accurate 20V output regulation to match Lenovo’s requirements.
- Worldwide voltage support (100–240V) for use at home, in the office and while travelling.
- 12-month warranty and 30-day return window for peace of mind.
7. Summary
If you need a replacement for your original 65W Lenovo laptop charger, a
20V 3.25A adapter with a 4.0 × 1.7 mm plug is the correct choice for a wide range of IdeaPad, Flex, Yoga and V-series notebooks.
By verifying the voltage, wattage, connector size, part number and laptop model, you can be confident that this plug-top one-piece adapter will power your Lenovo system safely and reliably.