Lithium Pure Sine Wave Power Device AMAZON
Powkey 200Watt Portable Power Bank with AC Outlet for Camping 42000mAh Power Supply for CPAP ,2 AC Ports, 4 USB Ports, 2 DC Port by powkey 4.3 out of 5 stars 57 customer reviews Price: $145.89...
Forum Discussion
An impressive device, but the numbers don't add up.
Claims 42000mAh(210Wh). 210 Wh would equal about 16 Ah.
Unit weighs a total of 3.3 pounds. A typical lithium battery that weighs 3 pounds puts out about 14 Ah.
Claims "Recharge the power bank faster than ever with the 15V/2A DC input, only need 6-7 hours to get fully recharged".
To recharge 42 Ah with 2 amp charger would take 21 hours.
Here's the same one with different brand:
https://www.amazon.com/Power-Station-FLOUREON-Generator-PowerBank/dp/B074QK75TM/ref=sr_1_5?keywords=Powkey+200Watt+Portable+Power+Bank&qid=1560686776&s=gateway&sr=8-5
Claims 42000mAh(210Wh). 210 Wh would equal about 16 Ah.
Unit weighs a total of 3.3 pounds. A typical lithium battery that weighs 3 pounds puts out about 14 Ah.
Claims "Recharge the power bank faster than ever with the 15V/2A DC input, only need 6-7 hours to get fully recharged".
To recharge 42 Ah with 2 amp charger would take 21 hours.
Here's the same one with different brand:
https://www.amazon.com/Power-Station-FLOUREON-Generator-PowerBank/dp/B074QK75TM/ref=sr_1_5?keywords=Powkey+200Watt+Portable+Power+Bank&qid=1560686776&s=gateway&sr=8-5
