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Cordless palm routers - charging/runtime
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R D S
May 19, 2022, 8:34:31 AM5/19/22
to
I haven't kept the manual and can't find info online.....
Has anyone got a cordless palm router?
I have a Ruyika 21v 6000mah, it hasn't a charging station but a power
pack and DC plug that goes into the battery.
I've had it a while and never used except to test it and got about 5
mins out of it yesterday before it went flat, but I charged it for a
couple of hours this morning and got about 10 mins.
I'll leave it on charge for longer obviously but what should you expect
from these runtime wise? I'm reading online tat it should go for 250
feet depending on the job, i'm getting about 20.
Has anyone got a cordless palm router?
I have a Ruyika 21v 6000mah, it hasn't a charging station but a power
pack and DC plug that goes into the battery.
I've had it a while and never used except to test it and got about 5
mins out of it yesterday before it went flat, but I charged it for a
couple of hours this morning and got about 10 mins.
I'll leave it on charge for longer obviously but what should you expect
from these runtime wise? I'm reading online tat it should go for 250
feet depending on the job, i'm getting about 20.
Dave Plowman (News)
May 19, 2022, 9:17:18 AM5/19/22
to
In article <t65dgj$23n$1...@dont-email.me>,
21v 6 amp.hr? That is a vast battery.
--
*Virtual reality is its own reward*
Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.
--
*Virtual reality is its own reward*
Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.
Theo
May 19, 2022, 9:28:00 AM5/19/22
to
You can get two, and a router, for £80 allegedly.
https://www.ebay.co.uk/itm/284813111176
(21v is what everyone else calls 18v or 20v)
Since, even on offer, it's hard to get Makita batteries for less than £10
per Ah, I suspect they are lying about the capacity.
OP: look at the rating of the battery charger and do some sums. For
example, if the output is rated at 21V 1A you're not going to be able to
charge a 6Ah battery in less than 6 hours. If the battery goes from empty
to full in less time, the capacity is lower.
Theo
https://www.ebay.co.uk/itm/284813111176
(21v is what everyone else calls 18v or 20v)
Since, even on offer, it's hard to get Makita batteries for less than £10
per Ah, I suspect they are lying about the capacity.
OP: look at the rating of the battery charger and do some sums. For
example, if the output is rated at 21V 1A you're not going to be able to
charge a 6Ah battery in less than 6 hours. If the battery goes from empty
to full in less time, the capacity is lower.
Theo
R D S
May 19, 2022, 10:25:08 AM5/19/22
to
On 19/05/2022 14:27, Theo wrote:
>
> OP: look at the rating of the battery charger and do some sums. For
> example, if the output is rated at 21V 1A you're not going to be able to
> charge a 6Ah battery in less than 6 hours. If the battery goes from empty
> to full in less time, the capacity is lower.
>
Yeah, I had that epiphany, it is a 1A charger, I can't remember the last
>
> OP: look at the rating of the battery charger and do some sums. For
> example, if the output is rated at 21V 1A you're not going to be able to
> charge a 6Ah battery in less than 6 hours. If the battery goes from empty
> to full in less time, the capacity is lower.
>
time I was expected to wait 6+ hrs for something to charge!
I'll see what sort of life I get after an all nighter, but I'll probably
get a compatible battery and/or faster charger if I feel like i'm going
to use it more often.
I think it will take Makita batteries but i'm not paying that money, I
wonder how one would sort the wheat from the chaff buying unbranded online?
R D S
May 19, 2022, 10:34:50 AM5/19/22
to
On 19/05/2022 14:27, Theo wrote:
> "Dave Plowman (News)" <da...@davenoise.co.uk> wrote:
>> 21v 6 amp.hr? That is a vast battery.
>
> You can get two, and a router, for £80 allegedly.
> https://www.ebay.co.uk/itm/284813111176
> (21v is what everyone else calls 18v or 20v)
>
Actually, I might just buy that, it looks the same unit, it would be
>> 21v 6 amp.hr? That is a vast battery.
>
> You can get two, and a router, for £80 allegedly.
> https://www.ebay.co.uk/itm/284813111176
> (21v is what everyone else calls 18v or 20v)
>
handy to have 3 batteries and not need to change blades when you are
doing more than one profile.
John Rumm
May 19, 2022, 2:46:09 PM5/19/22
to
On 19/05/2022 15:25, R D S wrote:
> On 19/05/2022 14:27, Theo wrote:
>>
>> OP: look at the rating of the battery charger and do some sums. For
>> example, if the output is rated at 21V 1A you're not going to be able to
>> charge a 6Ah battery in less than 6 hours. If the battery goes from
>> empty
>> to full in less time, the capacity is lower.
>>
> Yeah, I had that epiphany, it is a 1A charger, I can't remember the last
> time I was expected to wait 6+ hrs for something to charge!
>
> I'll see what sort of life I get after an all nighter, but I'll probably
> get a compatible battery and/or faster charger if I feel like i'm going
> to use it more often.
> I think it will take Makita batteries but i'm not paying that money, I
IME, buy the Makita batteries, they work out cheaper in the end!
> On 19/05/2022 14:27, Theo wrote:
>>
>> OP: look at the rating of the battery charger and do some sums. For
>> example, if the output is rated at 21V 1A you're not going to be able to
>> charge a 6Ah battery in less than 6 hours. If the battery goes from
>> empty
>> to full in less time, the capacity is lower.
>>
> Yeah, I had that epiphany, it is a 1A charger, I can't remember the last
> time I was expected to wait 6+ hrs for something to charge!
>
> I'll see what sort of life I get after an all nighter, but I'll probably
> get a compatible battery and/or faster charger if I feel like i'm going
> to use it more often.
> I think it will take Makita batteries but i'm not paying that money, I
> wonder how one would sort the wheat from the chaff buying unbranded online?
Samsung, LG, Sony etc cells, then it is probably ok.
If it claims 6Ah and costs £30 then it is probably at best ok for very
light duty.
I have noticed that a number of chinesium tools seem to be coming with
what looks like a Makita 18V LiIon battery fitting these days. The other
day I was partly tempted by a cordless router offering from Rutlands,
that looked like it would use Mak batteries, but their tech support was
managed a spectacular answer that managed to be completely information
free, so I did not bother!
Perhaps we should start a wiki page of what tools work with what batteries?
--
Cheers,
John.
/=================================================================\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\=================================================================/
Theo
May 19, 2022, 3:52:21 PM5/19/22
to
John Rumm <see.my.s...@nowhere.null> wrote:
> On 19/05/2022 15:25, R D S wrote:
> > I think it will take Makita batteries but i'm not paying that money, I
>
> IME, buy the Makita batteries, they work out cheaper in the end!
+1. The Chinesium batteries can actually cost more per Wh, and possibly
> On 19/05/2022 15:25, R D S wrote:
> > I think it will take Makita batteries but i'm not paying that money, I
>
> IME, buy the Makita batteries, they work out cheaper in the end!
don't last for as many cycles.
18650 cells:
https://www.youtube.com/watch?v=qMZuHMlRw_0
Dewalt power tools:
https://www.youtube.com/watch?v=RjBiM0GQEe8
> > wonder how one would sort the wheat from the chaff buying unbranded online?
>
> If it has a brand name on it you recognise, or you built it with
> Samsung, LG, Sony etc cells, then it is probably ok.
>
> If it claims 6Ah and costs £30 then it is probably at best ok for very
> light duty.
extra 'ballast'.
> I have noticed that a number of chinesium tools seem to be coming with
> what looks like a Makita 18V LiIon battery fitting these days. The other
> day I was partly tempted by a cordless router offering from Rutlands,
> that looked like it would use Mak batteries, but their tech support was
> managed a spectacular answer that managed to be completely information
> free, so I did not bother!
>
> Perhaps we should start a wiki page of what tools work with what batteries?
(unless such a list exists elsewhere)
One thing that would be interesting to know is whether the tools do the
right thing with battery management. The Makita batteries have a third
contact which is a simple 12v output that goes low when the battery decides
it's had enough, which is to tell the tool to shut down. If the tool
ignores that contact it's possible to brick the battery by over-discharging
it. I suspect the tools don't use that, perhaps because the BMS of the
clone batteries doesn't do it that way, which makes them risky to use with
genuine Makita batteries.
Theo
John Rumm
May 19, 2022, 7:54:53 PM5/19/22
to
go on...
I have seen some youtube vids where they have tested tools that use
Makita pattern batts (with varying degrees of actual compatibility)
> One thing that would be interesting to know is whether the tools do the
> right thing with battery management. The Makita batteries have a third
> contact which is a simple 12v output that goes low when the battery decides
> it's had enough, which is to tell the tool to shut down. If the tool
> ignores that contact it's possible to brick the battery by over-discharging
> it. I suspect the tools don't use that, perhaps because the BMS of the
> clone batteries doesn't do it that way, which makes them risky to use with
> genuine Makita batteries.
Makita tools that were designed for NiMh batteries on the current LXT
ones. You have to take care to stop draining the battery as soon as it
shows indication of fading since the tool has no way of knowing it ought
to cut out.
The other thing I have noticed with most knock off versions is that the
chargers don't include the forced air cooling that is present on the
real ones. So you would also have to be careful using the clone chargers
on hot batteries (real or clone). It also probably suggests that they
can't charge as quickly either.
(The advice from Makita for dealing with hot batteries these days runs
contrary to the older wisdom about not charging a hot battery. They now
say you should place them on charge ASAP while still hot. The charger
senses the temperature and then runs the fan to cool the battery before
it starts charging it)
John Rumm
May 19, 2022, 8:51:48 PM5/19/22
to
Or you can get it with 15Ah batteries, and a 1000W input power... :-)
Let's hope those batteries can supply 55A!
(FWIW the Katsu branded knock off of the Makita seems to get some
reasonable reviews)
Andy Burns
May 20, 2022, 3:22:28 AM5/20/22
to
John Rumm wrote:
> If it claims 6Ah and costs £30 then it is probably at best ok for very light duty.
Just replace the 18650s with 15,000 mAh MegaDeathFire cells from Wish or AliExpress
> If it claims 6Ah and costs £30 then it is probably at best ok for very light duty.
wasbit
May 20, 2022, 4:59:09 AM5/20/22
to
"R D S" <rsa...@yahoo.com> wrote in message
news:t65dgj$23n$1...@dont-email.me...
I mark the length of time to charge on the mains adaptor with a silver
marking pen.
Nothing worse than hoping the battery will charge in an hour but having to
wait 3 or 5 hours.
--
Regards
wasbit
news:t65dgj$23n$1...@dont-email.me...
marking pen.
Nothing worse than hoping the battery will charge in an hour but having to
wait 3 or 5 hours.
--
Regards
wasbit
R D S
May 20, 2022, 5:08:05 AM5/20/22
to
On 19/05/2022 20:52, Theo wrote:
>
>
> One thing that would be interesting to know is whether the tools do the
> right thing with battery management. The Makita batteries have a third
> contact which is a simple 12v output that goes low when the battery decides
> it's had enough, which is to tell the tool to shut down.
It does die instantly from full speed rather than wane. Hopefully that's
> right thing with battery management. The Makita batteries have a third
> contact which is a simple 12v output that goes low when the battery decides
> it's had enough, which is to tell the tool to shut down.
a good sign.
Animal
May 20, 2022, 5:41:45 PM5/20/22
to
Mark
May 20, 2022, 7:31:57 PM5/20/22
to
John Rumm wrote:
>
> Yup I have a couple of battery adaptors that let me run my old 18V
> Makita tools that were designed for NiMh batteries on the current LXT
> ones. You have to take care to stop draining the battery as soon as it
> shows indication of fading since the tool has no way of knowing it ought
> to cut out.
just for information the Wickes/Bauker/Ferrex batteries have all the BMS in the battery
>
> Yup I have a couple of battery adaptors that let me run my old 18V
> Makita tools that were designed for NiMh batteries on the current LXT
> ones. You have to take care to stop draining the battery as soon as it
> shows indication of fading since the tool has no way of knowing it ought
> to cut out.
unlike most makes which have part of the bms inside the drill
so easy and safe to use on upgrade of old NiMh 18v tools
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