Anker 325 Power Bank 20000mAh External Battery Pack vs Spigen Liquid Air Case for iPhone 15 Pro Max (ACS06644)
What separates them
These two differ on 1 recorded specification. The Anker 325 Power Bank 20000mAh External Battery Pack is ₹1,800 dearer.
Anker 325 Power Bank 20000mAh External Battery Pack vs Spigen Liquid Air Case for iPhone 15 Pro Max (ACS06644)
Anker
Anker 325 Power Bank 20000mAh External Battery Pack
₹3,299
20000 mAh is measured at the cell's 3.7 V; your phone charges at 5 V, and the conversion loses 30 to 35 percent, so what actually reaches the phone is closer to 13000 mAh -- about three and a half charges rather than five.
Full details →Spigen
Spigen Liquid Air Case for iPhone 15 Pro Max (ACS06644)
₹1,499
MIL-STD-810G on a phone case is worth understanding for what it is not: a test methodology, not a certification anyone grants or audits, where the manufacturer chooses the drop height and declares its own result.
Full details →Who the Anker 325 Power Bank 20000mAh External Battery Pack is for
Buy it if: Travellers wanting several days of phone charging in something airline-legal.
Avoid it if: Anyone charging a laptop or wanting fast recharge -- 15 W in and out is slow at this capacity.
Who the Spigen Liquid Air Case for iPhone 15 Pro Max is for
Buy it if: Anyone wanting slim protection with good grip and no yellowing.
Avoid it if: Anyone using MagSafe accessories -- there are no magnets, so mounts and wallets will not hold.
Specifications, side by side
1 of 17 rows differ. Differences first.
| Specification | Anker 325 Power Bank 20000mAh External Battery Pack | Spigen Liquid Air Case for iPhone 15 Pro Max |
|---|---|---|
| Price | ₹3,299 | ₹1,499 |
| Weight | 435 g | 38 g |
| Warranty | 1 Year Official Brand Warranty | 1 Year Official Brand Warranty |
| Actual deliverable | Roughly 13000 mAh at 5 V after conversion losses of 30 to 35 percent. This is normal and almost never stated | not published |
| Aircraft | 74 Wh is under the 100 Wh cabin baggage limit, so it may be carried on board | not published |
| Drop protection | not published | Air Cushion corners. Spigen states MIL-STD-810G 516.6 compliance |
| Grip | not published | Matte textured back, which resists fingerprints far better than glossy TPU |
| Input | USB-C, 15 W -- so it takes roughly 10 hours to recharge itself | not published |
| Material | not published | Single-piece thermoplastic polyurethane |
| Output | 15 W maximum across two USB-A and one USB-C | not published |
| Passthrough | No -- it will not charge a device while itself charging | not published |
| Phone charges | About 3.5 full charges of a 4000 mAh phone, not the 5 the rated figure implies | not published |
| Raised bezel | not published | 1.2 mm at the screen, 1.5 mm at the camera |
| Rated capacity | 20000 mAh at the cell voltage of 3.7 V, which is 74 Wh | not published |
| Thickness added | not published | About 1.8 mm |
| What MIL-STD-810G means | not published | A test *method*, not a pass mark. The manufacturer selects the drop height and self-certifies the result |
| Wireless charging | not published | Works through the case; no MagSafe magnets, so a MagSafe accessory will slide |
| Yellowing | not published | Clear TPU yellows with UV over time; this is pigmented, so it does not |
Every row is a figure one or both products record. A blank is a figure the catalogue does not hold, not a zero.
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