A laptop power banks needs to match its USB-C Power Delivery (PD) output to what the laptop actually draws; capacity alone doesn't charge a laptop- wattage does. GRAVL's laptop range covers three output tiers: 67W (Axis 67), 130W split across two ports (Forge 130), and 240W split across two ports (Engine 240).As a rule of thumb: a MacBook Air or similar ultrabook draws around 65 to 70W, a MacBook Pro 14-inch typically needs closer to 96W, and a MacBook Pro 16-inch or high-performance Windows laptop (Dell XPS, HP Spectre, Lenovo ThinkPad) can draw well above 100W under load. Choosing the right power banks for laptop use means matching this number, not chasing the highest mAh figure available. GRAVL's full USB-C power banks laptop range is built around this exact logic: three wattage tiers, each sized to a real category of laptop.

Yes , but whether it charges the laptop well depends entirely on wattage, not the mAh number. A 20,000mAh power banks with a weak output will trickle-charge a laptop slowly, or fail to keep pace with one that's actively in use; the same 20,000mAh cell paired with the right wattage charges it properly.GRAVL's Axis 67 and Forge 130 both use a 20,000mAh cell, but deliver very different results because of their output. The Axis 67 delivers 67W, enough for a MacBook Air or similar ultrabook to charge at full, real-world speed. The Forge 130 uses the same 20,000mAh capacity but splits its output into two independent 65W channels, so it can charge a laptop and a phone simultaneously without slowing either down. For a high-performance laptop pulling more than 100W under load, a 20,000mAh laptop charger power banks at either of these wattages will still charge it just more slowly than a higher-output option like the Engine 240.

It depends on your laptop and whether you need a second device charged at the same time. As a starting point: the Axis 67 suits a MacBook Air or similar ultrabook on its own. The Forge 130 suits anyone who needs a laptop and a phone charging at full speed simultaneously. The Engine 240 suits a MacBook Pro or a high-draw creator/gaming laptop that needs serious sustained wattage.

• Axis 67 (67W, 20,000mAh, ₹4,515) , right-sized for a MacBook Air M2/M3 or similar ultrabook. The most compact of the three.
• Forge 130 (130W total, 65W+65W simultaneous, 20,000mAh, ₹6,125) , built for a MacBook Pro 14-inch and a phone charging together, both at full speed.
• Engine 240 (240W total, 140W+100W simultaneous, 27,000mAh, ₹7,665) , built for a MacBook Pro 16-inch M4 Max, or high-draw Windows laptops like the Dell XPS, ASUS ROG or HP Spectre.

All three carry the same 4-year warranty, so the decision should come down to your laptop's wattage and whether you need a second device charged at the same time , not warranty terms, which are identical across the range.

Yes, on the Forge 130 and Engine 240 , both deliver two fully independent, simultaneous outputs rather than one output shared between ports. The Forge 130 splits its 130W into two separate 65W channels running at the same time, so a laptop and a phone each charge at full speed without either one slowing the other down.
This is what a power banks for laptop and mobile use should do: not one device waiting its turn behind the other, but both charging simultaneously at their full rated speed. The Engine 240 does the same at a higher tier , 140W and 100W simultaneously , for laptops that need more power alongside a second device.

Yes , every GRAVL laptop power banks is airline-safe, designed to remain under IATA's 100Wh carry-on limit, so none of them require prior airline approval. Airlines regulate power banks by watt-hours (Wh), not by the mAh number printed on the box, which is the detail most buyers miss.The Engine 240, GRAVL's highest-capacity power banks, sits at 97.2Wh , just under the 100Wh ceiling by design. All three models must be carried in hand luggage, never in checked baggage, and none need special declaration at security since the Wh rating is stated clearly on each unit. This is exactly what the IATA guidelines require, and it's why GRAVL's laptop range is built to the Wh limit first, capacity second.

On GRAVL's Axis 67 (20,000mAh), expect approximately 4 full iPhone 16 charges, or approximately 3 full iPhone 17 Pro charges, from a single full bank. Android phone charge counts vary more by device and battery size, but generally fall in a similar range to iPhone for phones with comparable battery capacity, except roughly 3 to 4 full charges for a typical modern Android flagship.
These are real-world estimates, not laboratory maximums, and actual results vary with battery health, charging speed, and background device activity. The Forge 130 uses the same 20,000mAh capacity but splits output across two ports, so its per-device phone-charge count is similar when used for phone charging alone, with the added ability to charge a laptop at the same time without reducing that count.

For a MacBook, the Engine 240's 240W output is built to match a MacBook Pro 16-inch M4 Max at full load, while the Axis 67's 67W suits a MacBook Air comfortably. The same logic applies across brands: for Dell laptop use, particularly higher-draw models like the XPS, or for HP laptops like the Spectre line, the Forge 130 or Engine 240 performs best, where output exceeds 100W.

Because a regular power banks is built to top up a phone, and GRAVL's laptop range is built to charge a laptop properly designed around real laptop wattage from the start rather than adapted from a phone-charger design. That shows up in four places: higher sustained wattage (up to 240W, the highest available on a power banks sold in India), genuine laptop-charging capability rather than a slow trickle, airline-safe engineering under the 100Wh limit for professionals who travel, and a 4-year warranty significantly longer than the 6 to 18 months typical in this category because GRAVL backs the battery long-term instead of just the casing.
For professionals, this means: a power banks that survives daily laptop use, flies without a gate conversation, and is warrantied to still be working years after a regular power banks would have been replaced.

GRAVL's warranty covers the full product unconditionally for one year from the date of purchase, with no registration required; your invoice or order ID is proof enough. From year two through year four, the battery specifically is covered, once the product is registered within 30 days of purchase.
This is one of GRAVL's biggest differentiators, and very few power banks brands in India offer anything close to it; most warranties in this category run 6 to 18 months. The reason GRAVL can back the battery for three additional years is the same reason the warranty exists at all: a brand built on reliability guarantees the part of the product that actually degrades over time, not just the shell around it. Full terms, including what's covered and what isn't, are available on the warranty page.

Choose a laptop power banks based on your laptop’s charging wattage and whether you need to charge another device at the same time.

The GRAVL Axis 67 is suitable for a MacBook Air, office laptop, or ultrabook that requires approximately 65W to 67W charging.

The GRAVL Forge 130 is a better choice if you want to charge a laptop and phone together. It provides two independent 65W outputs, allowing both compatible devices to charge simultaneously.

The GRAVL Engine 240 is designed for MacBook Pro models, creator laptops, gaming laptops, and other high power computers. It provides up to 240W total output, including 140W and 100W simultaneous charging.

Check the wattage printed on your laptop charger before selecting a model. Choosing more output than your laptop supports will not necessarily make it charge faster. All three GRAVL laptop power banks include the same 4 year warranty, so your decision should be based on device compatibility, required wattage, and simultaneous charging needs.