Anker 737 Charger 120W GaN Prime 3-Port Wall Fast Charger vs Anker 325 Power Bank 20000mAh External Battery Pack
What separates them
These two differ on 1 recorded specification. The Anker 737 Charger 120W GaN Prime 3-Port Wall Fast Charger is ₹4,700 dearer.
Anker 737 Charger 120W GaN Prime 3-Port Wall Fast Charger vs Anker 325 Power Bank 20000mAh External Battery Pack
Anker
Anker 737 Charger 120W GaN Prime 3-Port Wall Fast Charger
₹7,999
120 W is a total shared across three ports, not a figure any single port sustains while others are in use, and this is the specification that surprises people.
Full details →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 →Who the Anker 737 Charger 120W GaN Prime 3-Port Wall Fast Charger is for
Buy it if: Anyone charging a laptop and phone from one adapter who understands the power is shared.
Avoid it if: Anyone expecting full speed on every port simultaneously -- no multi-port charger does that.
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.
Specifications, side by side
1 of 17 rows differ. Differences first.
| Specification | Anker 737 Charger 120W GaN Prime 3-Port Wall Fast Charger | Anker 325 Power Bank 20000mAh External Battery Pack |
|---|---|---|
| Price | ₹7,999 | ₹3,299 |
| Weight | 200 g | 435 g |
| Warranty | 1 Year Official Brand Warranty | 1 Year Official Brand Warranty |
| Actual deliverable | not published | Roughly 13000 mAh at 5 V after conversion losses of 30 to 35 percent. This is normal and almost never stated |
| Aircraft | not published | 74 Wh is under the 100 Wh cabin baggage limit, so it may be carried on board |
| Input | not published | USB-C, 15 W -- so it takes roughly 10 hours to recharge itself |
| One device | USB-C 1 alone delivers 100 W | not published |
| Output | not published | 15 W maximum across two USB-A and one USB-C |
| Passthrough | not published | No -- it will not charge a device while itself charging |
| Phone charges | not published | About 3.5 full charges of a 4000 mAh phone, not the 5 the rated figure implies |
| Plug | Indian 2-pin | not published |
| Ports | 2 x USB-C, 1 x USB-A | not published |
| Rated capacity | not published | 20000 mAh at the cell voltage of 3.7 V, which is 74 Wh |
| Technology | Gallium nitride, which is why it is about half the size of a silicon 120 W charger | not published |
| Three devices | 65 W, 45 W and 10 W respectively | not published |
| Total output | 120 W shared across three ports -- not 120 W per port | not published |
| Two devices | USB-C 1 drops to 65 W and USB-C 2 takes 45 W. A laptop charging at 100 W silently halves when a phone is plugged in | not published |
| Why this happens | A shared power budget. Every multi-port charger does this and few publish the table | not published |
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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