Portable Power/Battery - Solar Chargeable - 200000 Mah

GC67 on 04/07/2016 - 15:26
Last edited 04/07/2016 - 15:28

Bought one of these recently as I'm going to be travelling and need portable power to take with me and charge on the go via solar.

http://www.ebay.com.au/itm/Dual-USB-Solar-Power-Bank-200000m…

Not being that electrically minded, I bought the one with the biggest/highest mAh I could find… What does the one I bought give me that a 10000mAh one doesn't ? (except for 190000 more mAh thingies)

It'll mainly be used to recharge devices I carry, phone, tablet, camera batteries etc.

Have I bought the right thing ?

Thoughts ?

GC

EDIT: Also, how can I test that this thing actually isn't just a smaller mAh capacity device in a new case ?

Electrical & Electronics

Comments

  • Savas on 04/07/2016 - 15:44

    I wonder if it is the same company that made my 512 GB USB flash drive

  • Forskin on 04/07/2016 - 16:03

    I can almost guarantee that this is not a "200,000" mAh battery. None of these cheap Chinese knock offs are what they claim to be. 200,000 mAh seems ridiculous anyway… will probably hold 2000 mAh

  • geek001 on 04/07/2016 - 16:17
    +2

    Lol.. 200,000mah.. battery technology hasn't progressed much. So to get 200,000mah hour battery, you would need roughly 20 times the size of your 10,000mah battery. The solar panel also looks small, probably a 1W solar panel. To fully charge your 200,000mah battery, it would take:

    In an hour, it would generate:
    1W / 5V = 0.2A or 200ma.

    So, to fully charge your 200,000mah, it would take 200,000mah /200ma = 1000 hours at 100% intensity sunlight. Assuming a generous 5 hours of 100% intensity sunlight per day, it would take 200 days to fully charge your battery!

    :)

  • loke on 04/07/2016 - 16:29

    It definitely is lower capacity than advertised 200,000 mAh, you've to open it up and count the number of 18650 batteries in it and the rating ~10,000-20,000mAh is based off the 3.7v battery.

    Should've stuck with the reputable brands that come up on ozbargain so often, heck just a quick search would've thrown all the submissions at you, xiaomi / romoss / tronsmart and respective retailers…

  • kywst on 04/07/2016 - 17:24

    The capacity looks to be doctored in the images.

    Probably one of these:

    1 - Tested @ 15000mah
    2 - Manufacturer claims 8000mah

    DO NOT BUY IT.

  • mskeggs on 04/07/2016 - 17:25
    +1

    And unfortunately, the solar side isn't that crash hot either. It would output at most 200mA, or a fifth an average phone charger. Even if the actual battery rating is only 20,000mAh as is likely, you would need to leave it in the sun for more than 100 hours to charge it from flat. It is likely that with static discharge, the solar panel would never be able to charge the battery bank to full.

    • mskeggs on 04/07/2016 - 17:26

      Er, or what geek001 already said.

  • GC67 on 05/07/2016 - 08:59

    Great comments from all - thanks !

    Loke - you're right. One of those shoulda, woulda, coulda things…

    Hopefully it's at least a little useful whilst I'm away.

    GC

  • SnoozeAndLose on 05/07/2016 - 09:05

    Note:200000mah is theoretical capacity

    from the company.You can charge 4-10 times

    (depending on your phones conversion rate) at one

    go.guarantee 3-4 times of charging capability.

    For charging the phone 3-4 time it will be at most around 15000 mah as phone is normally 2500 mah - 3500 mah

  • Euphemistic on 05/07/2016 - 13:39

    200,000mAh looks like a typo. 20,000 sounds optimistic in that size gadget for the space available for a battery.

    200,000mAh = 200Ah. 200Ah is what you would want to power a camper trailer/caravan for a few days running a fridge, lights etc and with lithium batteries is probably going to be half the size of a car battery.

  • cheepwun on 05/07/2016 - 20:35

    Swindled.
    Tiny panel no good.
    Tiny cheap battery exposed to heat equals early death.
    You have been lied to. Complete waste of money.

    If you want to charge portably with solar buy one of those foldable portable kits that can fit in your bag that has a panel wattage in excess of 10w (around 50-60 dollars). Supply your own USB power bank. Keep the bank out of the heat when charging. Use good quality USB cables. Cheap rubbish cables will slow down your charges.

    Alternatively buy one of the bigger folding camping kits (which will definitely not fit in your bag).

  • MrMcHairyHead on 12/07/2016 - 13:18

    They've added 2 extra zeroes to the capacity. Unless that thing is too big to carry.

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