🔋💻 Acer 19V 90W Laptop Charger
 
(19V 4.74A AC Adapter • 90W • 5.5 mm × 1.7 mm Barrel Connector • No Center Pin)

This AC adapter delivers 90W of regulated DC power to Acer laptops using the 5.5 mm × 1.7 mm barrel connector. It was Acer’s standard supply for mid‑range and performance laptops across multiple families.
 
🔧 Charger Form
Input: 100–240V AC, 50/60Hz
Output: 19V DC, 4.74A (90W)
Connector: 5.5 mm outer / 1.7 mm inner barrel, no center pin
Inline power brick with detachable AC cord
Common part numbers: PA‑1900‑24, PA‑1900‑34, ADP‑90SB BB, AP.09003.001, LC.ADT0A.004
 
🖥️ Compatible Devices
🟩 Aspire Series
E‑Series: E1‑470, E1‑471, E1‑510, E1‑531, E1‑571
F‑Series: F5‑571, F5‑573, F5‑573G
M‑Series: M5‑481, M5‑481T, M5‑581T
V‑Series: V3‑471, V3‑471G, V3‑531, V3‑551, V3‑571, V3‑571G
V5‑Series: V5‑471, V5‑471G, V5‑531, V5‑551, V5‑571, V5‑571P
Legacy Aspire: 4736, 4741, 4750, 4752, 4755
5336, 5349, 5532, 5536, 5538, 5551, 5552, 5560
5733, 5741, 5742, 5749, 5750, 5750G, 5755, 5755G
5920, 5930, 5940, 5942
6930, 6935, 6935G, 6940
7730, 7735, 7740, 7750, 7750G
ES1‑512, ES1‑531, ES1‑571
🟩 TravelMate Series
6291, 6292, 6293
7330, 7530, 7730
P243, P253, P643
🟩 Extensa Series
5230, 5235, 5630, 5635
🟩 Predator Series
N17Q4 (Helios 300 barrel‑input variant)
G3600, G5900 (desktop replacements with barrel input)
🟩 Other Acer Models
N15W5 (Aspire E5‑575 and similar chassis)
Chromebook C710 (barrel input variant)
 
✅ Common Uses
🔌 Powering Acer laptops with discrete GPUs and 15–17" displays
🧩 Replacing lost or damaged OEM 90W adapters
🏢 Standardizing spares for Acer fleet deployments
🎒 Keeping as a travel adapter for mid‑range systems
🧪 Testing Acer laptops with a known‑good 90W supply
 
🧠 Signal Format
⚡ Input: Universal AC (100–240V)
🔋 Output: Regulated 19V DC, 90W max
🔌 No center pin — relies on barrel contact only
🔁 Backward compatible with 65W Acer laptops (safe, charges faster)
 
⚠️ Things to Watch Out For
📉 Not suitable for newer Acer laptops using USB‑C or slim barrels
🔌 Connector must match — not interchangeable with 3.0 mm or USB‑C plugs
🧯 Avoid third‑party clones with poor contact — may cause intermittent charging
🌀 Excess heat or frayed cables can cause power dropouts
🧪 Always confirm laptop’s required wattage before swapping adapters
 
🛠️ Quick Tips for Beginners
🧭 Check underside of laptop or original charger for voltage and connector size
🔌 Use only with laptops rated for 90W and 5.5 mm × 1.7 mm input
🧪 If laptop reports “adapter not recognized,” inspect barrel contact and cable integrity
🧯 Label adapters clearly to avoid mix‑ups with Acer’s 65W or USB‑C chargers
🧵 Keep one at desk and one in travel bag for convenience