HP Elitebook Laptop Charger- 820 G3

1. Output Voltage

19.5 Volts DC.

2. Output Current

Commonly 3.33 A for the 65W version; also lower (2.31 A for 45W) or higher (4.62 A for 90W) depending on wattage.

3. Output Power (Wattage)

• 65 W (most common genuine Charger for 820 G3)
• 45 W (lower power version)
• 90 W (higher capacity)

4. Connector / Tip Size

Barrel connector 4.5 mm × 3.0 mm with centre pin (sometimes “blue with pin in centre”).

5. Input Voltage Range

AC 100‑240 V, 50‑60 Hz (universal input). Useful for travel.

6. Compatibility / Model Numbers

Works for HP EliteBook 820 G3; also compatible with many other HP EliteBook / ProBook / Pavilion etc. models that accept same voltage / connector.

7. Part Numbers (Original / Genuine)

Examples: 714657‑001, 710412‑001, 709985‑002, 709985‑001, A065R07DL, 677770‑002, etc.

8. Safety & Protection Features

Over‑voltage, over‑current, short circuit, over‑temperature protection.

9. Warranty

Typically 12 months from manufacturer / seller for genuine or OEM replacements.

10. Physical Appearance / Color

Usually black, rectangular brick, with a fixed DC‑cable ending in barrel plug + detachable AC mains lead. May have blue tip.

11. Polarity / Smart Pin Feature

The connector has a centre pin; HP chargers often include “smart pin” signalling to laptop (for battery/fan/charging behaviour). The barrel plug thus is not just a plain barrel but includes a small internal pin.

12. Alternate Wattage Versions

• 45 W version: lower current, same voltage; suitable if laptop usage is light or battery charging only.
• 90 W version: higher current, can support more demanding use.

13. Size & Weight

Physically moderate size as typical laptop adapters; weight depends on wattage; larger wattage versions are heavier. Specific weight varies by manufacturer. (Exact weight not always listed for genuine HP.)

14. Environmental / Operating Conditions

Should be used in cool, dry environment; avoid moisture, extreme heat. Input frequency 50‑60 Hz; voltage fluctuations should be within limits (surge protection helpful). Based on seller descriptions.

15. Use / Function

Powers the laptop when plugged in; charges the battery concurrently; ensures stable voltage for internal components; replacement when original adapter is lost or fails. Also used as spare or travel adapter.