Fake Makita BL1840 how does it compare to the genuine article? Full simulation test

Are these Chinese copies any good? (This one bought ion eBay). We unleash the mighty Yokogawa on both. Can the Chinese copy's 5,000mAh dominate the Makita's 4,000mAh in a true dynamic test ?? Lets find out.

[@peted3637]

Thanks, you saved me from wasting money on non-genuine replacement batteries.

[@razenby]

You are welcome. They are shockingly bad and also the peak current is less so you also get less ooomph from the tool.

[@tomthompson7400]

This has to be the best test Ive seen , first class job.

[@razenby]

Thanks. Those aftermarket 3rd party batteries are really poor value. From the video fake one long
since expired whilst the genuine one is still used every week. Thanks for watching.

[@tz6414]

wow a proper test procedure, very interesting to get real figures, a bit like ebay laptop batteries, they are never good despite the claimed maH

[@razenby]

Thanks. These are shocking. The capacity claims of Lion batteries are out of control. I feel sorry for companies that pedal true goods and Pay import VAT. As long as no one picks up the gauntlet then running an honest business is getting harder every day. Trading Standards has the teeth to do something about it but they leave them on the bedside table when they leave the house.

[@PAXthe4Th]

Had one with 48v on the label And 18v on the contacts

[@razenby]

That may be a collectors item!!!

[@hightttech]

Very useful comparison. Thank You.

[@razenby]

You are welcome! The fake battery long since stopped providing any oompffh in a power tool. I just use it for a work light now.

[@jimmacdonald9746]

Super interesting , love the test 🇬🇧✊🏻

[@razenby]

Glad you enjoyed it.

[@yourfacelookslikebut]

Thank you, good info

[@razenby]

Pleased you found it interesting

[@RobinYee-xc9vf]

Battery packs, price range 's,low, middle, to high....most of us, do pay for great value 's...some go for cheaper....half prices, vs to full prices....

[@razenby]

Fake ones are a wast of money. No torque, no capacity and very short number of charge cycles before they fail.

[@ps3customgamer]

It’s now possible to buy a battery powered all in one spot welder from aliexpress and solder in your own cells. I’d go for 30q cells for 5.8ah

[@razenby]

Interesting. Thanks.

[@A_Pt_9298]

I'm considering the same, I've got a copy that's gone dead, I've got quite a few 18650 batteries which I'm sure are 3.6v so instead of messing around with these batteries make my own... We'll see

[@michaelbowler5434]

Mmm is there a cell or two missing in the cheapo

[@razenby]

The cells are all there they are just crappy quality low capacity or even a lot of Chines products are fitted with recycled cells.

[@Spin_D]

this could have been a 3 minute video

[@razenby]

I could dumb it down but people who are able to understand it do find it interesting.

[@hightttech]

@@razenby: ABSOLUTELY. I wouldn't change a thing; love your methodology. I do a lot of boring AGM battery testing utilizing constant current to termination voltage, but you made it interesting and practical with the "bolt tightening" simulation 👍.