Battpit Canada provides reliable replacement laptop batteries, laptop AC adapters, chargers, and power accessories for customers across Canada.
Shop 25,000+ compatible laptop batteries and power adapters for HP, Dell, Lenovo, Apple, Asus, and more. 100% Canadian-owned. Ships from Canada. No import fees.
buying a spare charger, or ordering accessories for business use, Battpit focuses on dependable products, clear compatibility information, and convenient Canadian shipping.
This replacement laptop adapter
for Compaq381090-001
is available for C$23.00
— Buy 1, get 1 at 50% off
.
18.5V
· 3.5A
· 65W
· Tip: 4.75*1.7mm.
Compatible Products for Your Device
Compatible Model
Compaq Presario Series Presario 2811CLCompaq Presario Series Presario 2815LACompaq Presario Series Presario 2822EACompaq Presario Series Presario 2826TCCompaq Presario Series Presario 2832SCCompaq Presario Series Presario 2842APCompaq Presario Series Presario 2880APCompaq Presario Series Presario A900ESCompaq Presario Series Presario A904NRCompaq Presario Series Presario A932TUCompaq Presario Series Presario A934TUCompaq Presario Series Presario A949NRCompaq Presario Series Presario A950EFCompaq Presario Series Presario A968TUCompaq Presario Series Presario B1205Compaq Presario Series Presario B1208VUCompaq Presario Series Presario B1233Compaq Presario Series Presario B1258Compaq Presario Series Presario B1275Compaq Presario Series Presario B1800TUCompaq Presario Series Presario B1831TUCompaq Presario Series Presario B1919Compaq Presario Series Presario B1974Compaq Presario Series Presario B2018Compaq Presario Series Presario B2812TXCompaq Presario Series Presario B2818TXCompaq Presario Series Presario B3300 CTOCompaq Presario Series Presario B3800Compaq Presario Series Presario B3801APCompaq Presario Series Presario B3812Compaq Presario Series Presario B3812APCompaq Presario Series Presario C509NRCompaq Presario Series Presario C556CACompaq Presario Series Presario C573USCompaq Presario Series Presario C700TCompaq Presario Series Presario C706Compaq Presario Series Presario C729Compaq Presario Series Presario C740EECompaq Presario Series Presario C762tuCompaq Presario Series Presario C769laCompaq Presario Series Presario C777NRCompaq Presario Series Presario C780tuCompaq Presario Series Presario C791EMCompaq Presario Series Presario C792ejCompaq Presario Series Presario C792tuCompaq Presario Series Presario C795ejCompaq Presario Series Presario EW618AVCompaq Presario Series Presario F554auCompaq Presario Series Presario F560USCompaq Presario Series Presario F731AUCompaq Presario Series Presario F732AUCompaq Presario Series Presario F762auCompaq Presario 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Presario V6615esCompaq Presario Series Presario V6710ESCompaq Presario Series Presario X1100Compaq Presario Series Presario X1404APCompaq LTE Series LTE 5080Compaq Concerto Series Concerto 4/25Compaq Business Notebook Series NC4000-DG364PCompaq Business Notebook Series NC4000-DL029PCompaq Business Notebook Series NC4000-DL032PCompaq Business Notebook Series NC4000-DL217PCompaq Business Notebook Series NX5000 - CompaqCompaq Armada Series Armada 3500-310350-006Compaq Armada Series Armada 3500-310350-051Compaq Armada Series Armada 3500-310350-096Compaq Armada Series Armada 3500-310350-374Compaq Armada Series Armada 3500-310400-005Compaq Armada Series Armada 3500-310400-056Compaq Armada Series Armada 3500-310400-094Compaq Armada Series Armada 3500-310400-391Compaq Armada Series Armada 3500-310400-AD6Compaq Armada Series Armada 3500-310400-BR4Compaq Armada Series Armada 4130Compaq Armada Series Armada 4210TCompaq Armada Series Armada E500-127668-031Compaq Armada Series Armada 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How can I confirm a replacement laptop adapter will work with my laptop?
Match the output voltage exactly, then confirm the connector type/size and
polarity. Wattage can be the same or higher than your original adapter.
Where do I find the voltage and wattage information?
Check the label on your original charger (or the laptop’s bottom label). Look for
Output (V) and Wattage (W). The voltage must match exactly.
Can I use an adapter with a different voltage?
In most cases, no. Using the wrong voltage can cause charging issues or damage your laptop.
Can I use a higher wattage adapter (for example 90W instead of 65W)?
Yes—higher wattage is usually OK as long as the voltage matches and the
connector fits. Your laptop will only draw the power it needs.
How do I confirm the connector size is correct?
Compare the tip with your original charger and check the listed connector size (OD × ID).
Even small differences (like 5.5×2.1mm vs 5.5×2.5mm) may not fit properly.
What does polarity mean, and why does it matter?
Polarity indicates which part of the plug is positive/negative. It must match your original adapter
for safe and reliable charging.
My laptop uses USB-C charging. Can I use any USB-C charger?
Not always. Your laptop may require USB-C Power Delivery (PD) and a minimum wattage
(such as 45W/65W/90W). Use a PD charger that meets or exceeds your laptop’s requirement.
Can this adapter be used internationally?
Many adapters support 100–240V input. Check your charger label. If it supports 100–240V,
you can use it overseas with the correct plug adapter.
How can I find my laptop model on a Windows laptop?
If you are using a Windows laptop, you can find your laptop model using System Information:
• Step 1: Press Windows + R to open the Run window.
• Step 2: Type msinfo32 and click OK.
• Step 3: In the System Summary section, find System Model in the right pane.
Choosing the correct replacement adapter matters for safety and charging performance.
Use this checklist before you place your order:
1. Match the Output Voltage
Check your original charger label for Output (for example, 19V).
The output voltage should match exactly.
2. Confirm Wattage / Amperage
Wattage can be the same or higher than your original adapter.
Using higher wattage is usually fine if voltage and connector match.
3. Check Connector Type & Size
For barrel tips, match the connector size (OD × ID).
For USB-C, ensure it supports USB-C PD and enough wattage for laptops.
4. Verify Polarity
Match the polarity symbol shown on your original adapter label.
💡 Battpit tip: Before using any laptop adapter, always check:
• Output voltage (must match exactly)
• Wattage (same or higher is OK)
• Connector size & polarity
All Battpit laptop adapters are designed with advanced built-in safety protection features to ensure reliable and stable charging performance.
Our replacement AC adapters help protect your laptop, battery, and internal components during everyday use.
Over-voltage protection – Protects your laptop from sudden voltage spikes and unstable power supply.
Over-current protection – Prevents excessive current flow to maintain safe and consistent charging.
Short-circuit protection – Automatically shuts down the power adapter if a fault is detected.
Each Battpit replacement laptop charger is engineered to meet high safety and quality standards, providing dependable performance
for your notebook computer at home, office, or travel.
Safety & Compliance
Certified Quality You Can Trust
Battpit Canada replacement laptop batteries and AC adapters are selected with safety,
compatibility, and compliance in mind. Products may meet common industry standards
including RoHS, CE, UL, and ULC where applicable.
RoHS
RoHS CompliantHelps reduce restricted hazardous substances in electronic products.
CE
CE MarkedDesigned to meet applicable safety and quality requirements.
UL
UL Recognized ComponentsSelected products may use UL recognized cells, components, or protection circuits.
ULC
ULC Safety StandardSupports safety confidence for products supplied to Canadian customers.
Why this matters:
These compliance marks help customers choose a reliable replacement laptop battery,
laptop charger, or AC adapter with built-in safety features such as over-charge,
over-current, over-voltage, and short-circuit protection.