Short answer: The original ROG Ally (2023, RC71L) ships with a 40 Wh battery (C41N2208).
Many users upgrade RC71L to a 74 Wh high-capacity pack. The ROG Ally X (2024, RC72LA) uses an 80 Wh battery (C41N2311).
ROG Ally battery sizes at a glance
| Device | Model code | Battery P/N | Nominal voltage | Capacity (Wh) | Approx. pack mAh* | Image | Buy |
|---|---|---|---|---|---|---|---|
| ROG Ally (2023) | RC71L | C41N2208 | ~15.48 V (4-cell) | 40 Wh (stock) | ≈ 2,600 mAh |
 |
View |
| ROG Ally (2023) — High-capacity | RC71L | C41N2208 | ~15.48 V (4-cell) | 74 Wh (upgrade) | ≈ 4,780 mAh |
 |
View |
| ROG Ally X (2024) | RC72LA | C41N2311 | ~15.48 V (4-cell) | 80 Wh (stock) | ≈ 5,170 mAh |
 |
View |
*Approximate pack mAh calculated as Wh ÷ V at the pack level (mAh is smaller than phone-style single-cell figures because the Ally uses a 4-cell series pack at ~15.48 V).
Which one do I have?
- RC71L on label/box = 2023 ROG Ally → 40 Wh stock, 74 Wh upgrade available.
- RC72LA on label/box = 2024 ROG Ally X → 80 Wh stock.
Need a replacement or upgrade? Pick the right pack by model code:
RC71L · 40Wh (stock) ·
RC71L · 74Wh (upgrade) ·
RC72LA · 80Wh (Ally X).