My partner has an Asus Zen Pad about 3 years old. The battery may be getting a bit tired and doesn't seem to hols a charge as long as before. I don't know anything about Power Banks, only that Lazada has hundreds of them, different brands and models. What do I need to know before I buy one?

I purchased 11Ah Eloop powerbank for about 600 baht as it was recommended by knowledgeable staff. 

 

I have been happy with it as the build quality is good. Eloop  also offers to check if the powerbank is authentic  http://szeloop.com/

 

One tip: Power bank MUST have visible markings how many Ampere hours it holds in case you wish to fly with it in Thailand. 

 

I lost a tiny powerbank at Udon Thani airport few years back as my powerbank didn't have the 3000mAh marked to the cover. Yesterday at Bangkok airport my new powerbank was checked by the security staff. 

 

I think the current limit to take a powerbank in hand luggage is maximum 2 powerbanks with total charge of 30Ah.

 

Tip2: Make sure that the powerbank has 2A output. Most tablets and current phones require that to charge the device. 

Best would be to visit one of the Advice shops. THere are a few in each province, great service, prices,etc.

 

https://www.advice.co.th/product/power-bank

16 minutes ago, jenny2017 said:

Best would be to visit one of the Advice shops. THere are a few in each province, great service, prices,etc.

 

https://www.advice.co.th/product/power-bank

Know of one in Pattaya? Edit: I think there might be one near Foodland.

50 minutes ago, oilinki said:

I purchased 11Ah Eloop powerbank for about 600 baht as it was recommended by knowledgeable staff. 

 

I have been happy with it as the build quality is good. Eloop  also offers to check if the powerbank is authentic  http://szeloop.com/

 

One tip: Power bank MUST have visible markings how many Ampere hours it holds in case you wish to fly with it in Thailand. 

 

I lost a tiny powerbank at Udon Thani airport few years back as my powerbank didn't have the 3000mAh marked to the cover. Yesterday at Bangkok airport my new powerbank was checked by the security staff. 

 

I think the current limit to take a powerbank in hand luggage is maximum 2 powerbanks with total charge of 30Ah.

Does it come with charging and USB cables?

had a asus netbook that was going out and thought that this powerbank thing was the answer. staff in the computer shop said no can do wont work with netbook was a while back perhaps things have changed?

bought a new battery from an authorised asus shop about 3 months ago, was fine when i got it gave a few hours, other day i tested timed it 20 minutes from full down to 15%
hmmm

21 minutes ago, giddyup said:

Does it come with charging and USB cables?

Comes with USB-cable, not with charger. 

21 minutes ago, giddyup said:

Does it come with charging and USB cables?

Comes with USB-cable, not with charger. 

17 minutes ago, oilinki said:

Comes with USB-cable, not with charger. 

Can probably use the same charger as the tablet.

6 minutes ago, giddyup said:

Can probably use the same charger as the tablet.

I would think so, the tablet charger likely gives strong enough current to charge the powerbank.