Myr20 for a piece.

What can be the low cost elements in this made to dump on landfill junk? May be can explode.





Attached thumbnail(s)

even sold at RM99

MR.DIY has a very very strict policy.
CHEAP is top and only priority.


they dont even sell energizer/duracell/enerloop/panasonic at most of their store.

you wont found bosch
you wont found nippon paint
you wont found logitech
you wont found tupperware

f... in instant noodle section.....
you cant find most premium instant noodle brand too.

this is the most basic powerbank. 5v2a
other brand also rm25 only.

not suprised.

I mean, the material cost to this already far exceeding the actual goods, they are mispricing by a whole lot, something is not matching in this thing. It is also can be found on any store btw.

how you know material cost already far exceeding??


10000mah battery,

cost to malaysia can be as low as RM15. ( supplier import cost + OEM white label )

RM20 for much better quality 1

It is highly suspicious to whether they are legitimate. Probably dishonest in the states capacity.

Just a heads-up, on a slight tangent:

Xiaomi recently issued a recall of powerbanks here, potential fire hazard.

https://www.lowyat.net/2025/364858/xiaomi-r...ah-in-malaysia/

It is legitimate powerbank. With genuine quality i believe.

10kmah is standard. can always open up and test the capacity (3.7v)

china is selling this at crazy quantity, eg those rental powerbank

The basic way should be compare the rated capacity to the price. Like compare the price of memory i believe. 1gb for a dollar etc. 1000mah for a dollar etc.

the catch is fire

it will catch fire

Do you think it can go even much lower price? To a point even cheaper than electricity bill in the household.

Batteries can come form many manufacturers. Small companies may have lower operating cost but their smaller volume material purchase cannot compete with bigger companies perhaps. They may use lower cost material for casing and cheaper electronic component from clone chip manufacturers.

Explode or not depends can happened even on branded one also. Maybe can refer if the battery has CCP safety approval at least

Anyway, batteries are mostly (if not all) sourced from China. China has all material resources required and cheaper than any country I believe.

When it catch fire, can be use as fuel to boil water.

china sell at rmb20 or RM18
now clearing stock because dont have CCC cert

This post has been edited by lj0000: Sep 11 2025, 03:18 PM

With a cert to higher the price by a one half, it is still very impressive feat.

https://pcdetail.taobao.com/TWFMSEZwcDJ2VTR....b4dc10b9s9QWkN

3C cert 10000mah = RMB10

even pineng brand is cheap what. you may got decent product with rm20.
https://my.shp.ee/xyEGX3p
though there is still chance of explosion even with known brand. use at your own risk

This post has been edited by zerorating: Sep 11 2025, 03:35 PM

mr diy ada jual energizer.

There is fake powerbank that is made to deceive people such as 5000 capacity battery cell which turn out to be 800 mah at best, but at very low price. But I can’t tell whether there is a catch in this one.

Probably a used goods, but for a brand new goods? That is outrageous.

5000mah powerbank with no fast charging.
So yes the pricing actually is correct for that product.

sales count is too much to be used goods. anyway its a low cost product what. sure cut corner some stuff.

The label is 3.7v at 10k, and 5v at 5100. Translate to 10k powerbank just like any other marketing for other branded one.

if you think is junk what for you buy ?? rememeber this , cheap things no good , good things no cheap

This post has been edited by destee88: Sep 11 2025, 04:26 PM

Its goes to show that the efficiency of that powerbank is bad if it drops by half the capacity of the battery after conversion.

So yeah padan dengan harga.

This post has been edited by COOLPINK: Sep 11 2025, 04:36 PM

Need it so i buy it, branded one is far too unattainable. Unbranded one and cheap one is too suspicious, to a point safety might be questionable.

It is pretty standard for most powerbank to convert just half of the rated capacity, even the branded one, nothing look sketchy here.

then buy another phone that had reverse charge functionality or just swap to the spare phone then when there is battery low for ur main phone

If its ok for you then no problem. :



This post has been edited by COOLPINK: Sep 11 2025, 04:51 PM

Use this powerbank is like waiting for death sentence. Anytime explode or start fire at home.

usually cheap powerbanks are quite straightforward to identify

1. they dont have good certifications
2. the battery capacity doesnt live up to its numbers, good powerbanks have close to 80% efficiency rating (8k mah/10k mah). the pic says 5k despite 10k mah capacity
3. the charging ports are basic low powered 5W-10W charging (no PD support)

Not so linear, battery is 3.7v, yet the usb port is 5.3v. Which is close to 70% disparity. Your best bet is get near 70% conversion given zero energy loss in the process. Some energy still get loss from battery to the cable and also to your phone, either way we just ignore some marginal loss that is unavoidable.

May be yours is li-polymer not li-ion cells.

yeah average powerbanks are 60-70% efficient (the rest are lost as heat), atas models claim 80%

cheap ones.. 50% also barely there

Unboxed, everything look fine so far, nothing broken or damaged…

meletup taktau eh

The thing about cheaper powerbanks are that they dont last very long. Maybe the cells they use are lower grade, and often times, no where near the rated and advertised capacity.

I've had 5 pineng ones that failed after a year or 2 (some become pregnant), while my 3 xiaomi ones are ALL still working after 3-5 years. Those 20k mah 45W ones weren't cheap when they were new in the market (160) but I've just ordered another one for 70 recently.


Given decent xiaomi ones arn't that much more expensive than chap ayam, no point in saving money there.


I find for powerbanks, just as long as you charge them up before you fully drain them, they tend to last longer. If you have completely drained them, sometimes they dont charge up properly anymore or worst, fireworks when charging.

can anyone suggest me good quality powerbank under rm 100?

Pineng has bad reputation of having low grade product, never get their stuff in the right direction once. All other brand too have their own unique flaws and perks. But overall didn’t get close to completely unusable hot mess products.

Why upload 2 times

buy low, sell high

1000 power bank of 10k mah you can get:
39000wh = 39kwh

A household power consumption is:
877 kWh per month
Or
19.973kwh Energy Required per day

Basically you can power your entire house already with this renewable energy. But would cost you 20k myr to setup.

The efficiency here is not mainly dependent on the battery type but the circuitry itself.

Like i said as long it is ok for you then no problem.
No need to go find validation by maybe this and that. lol!

k

Which one upload twice?

Power a EV car is accessible, but power an entire house is next level of achievement. Wait to see when it can even slash by another half of the price.

My household have used many cheap powerbanks from different brands. Pineng, yoobao, xiaomi, and many other unknown brands. Half of it got as freebies from event booth. Usually 1-2 years only tahan, then get bloated d.

If the powr bank easily spin around on a flat surface, that means it starting to bloat. If the powerbank looks bloated, I ask my family to throw it or give it to me to send at recycle center.

we b20, not t20

Shopee Malaysiahttps://shopee.com.my1000W/600W Portable Power Station AC 220V Output Emergency Backup ...
358000mah/3.7v 1500w/220v
Set you back Myr1125

Chatgpt: 358,000mAh at 3.7V is approximately equivalent to 78.17 kWh at 220V

Unit price (lower is better)
14myr/kwh (average unit price, not bad)

=====
DJI Power 2000 - Portable Power Station | 3000W Stable High-Power Output | Fast-Charging | Compact Size | Ultra-QuietRM 6,509.00Shopee(8)
3000watt 220v or 156.34kwh at 220v
Set you back Myr6209

Unit price (lower is better)
39.71myr/kwh (high unit price, no good)

=====
No brand bootleg powerbank (store)
37wh x 1000 37000wh
Chatgpt: 37,000 Wh at 3.7V is equivalent to 2,240 kWh at 220V.
Total item weight: 1000 x 218g = 218kg
Set you back Myr 21000

Unit price (lower is better)
9.375myr/kwh (lowest unit price! Outstanding)


Reference tnb unit price
First 200 kWh (1-200 kWh): 21.8 sen/kWh
Next 100 kWh (201-300 kWh): 33.4 sen/kWh
Next 300 kWh (301-600 kWh): 51.6 sen/kWh
Next 300 kWh (601-900 kWh): 54.6 sen/kWh
Usage above 901 kWh: 57.1 sen/kWh

This post has been edited by OnePiece999: Sep 12 2025, 01:00 AM