Ryobi OnePlus Tools Query

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tdgeek

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#296323 8-Jun-2022 10:13

Im looking at getting a Ryobi dethatcher/scarifier tool

I'm not electrically minded, but I know that more amps = more power. The scarifier tool requires 6amp batteries. I would start migrating tools over to Ryobi OnePlus, but can I use the 6amp battery on any tools? Mainly regarding lower power tools such as a cordless drill, which I assume needs much low amperage. Would a tool that uses say 3amps use the 6amp battery ok? I assume it will only draw 3amps and have longer battery life and there be no downsides?

Thanks

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#2923858 8-Jun-2022 10:16

Aren't the batteres measure in Ah - Amp Hours?

So a 6Ah one will work fine in a drill, but just last longer (and be a bit heavier).

Or does OnePlus now have different power ratings therefore not really being ONE plus, more like Two plus :) )

mattenz

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#2923859 8-Jun-2022 10:17

Sounds like you might be getting capacity and current slightly confused. The batteries are rated as 6Ah (Amp hours), and you're right, the tool won't draw more than available.

Interesting that they're not using their 36V battery.

tdgeek

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#2923864 8-Jun-2022 10:29

Ah ok, yeah slightly not electrically minded!

I watched a Youtube on another brand battery dethatcher, worked great except it cut out occasionally with the 4amp battery, so the dude used a 5 or 6 amp and it was fine, hence I thought brute power was due to amps.

Matt, true. Perhaps if they use 18V as much as possible it makes ownership cheaper for the consumer rather than having to buy both 18V and 36V for tools? IIRC this tool only uses one 18V battery and the second is for extended use time. Could be wrong, but Im pretty sure thats how it works

mrdrifter

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#2923866 8-Jun-2022 10:32

As above, the measurements on the Ryobi Batteries are the Ah ratings i.e. how much power they hold. For power output you will want the HP - High-Performance Batteries (typically the HP batteries are also higher capacity), they claim to be able to handle a higher power draw for tools that officially support them.

Reading the reviews on the Ryobi page, people indicate that these run down the batteries pretty quickly so you will want a couple to keep going while they charge.

All the 18V one plus batteries will work in one plus tools, the larger capacity batteries will just be larger in physical size as well.

Bung

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#2923870 8-Jun-2022 10:50

It is probably a 36v tool in effect. There's a YT vidoe of someone modifying one to take a single 40v battery.

richms

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#2923874 8-Jun-2022 11:08

When making cells, they can make them either for capacity or current output based on the thickness of the parts inside it. There are newer series of ryobi batteries that use a larger size cell in them called the HP ones - you will find that they have similar capacity to the older smaller ones but a much higher current output. To simply say that a 6Ah pack will be better than the 4 is a very naïve way of expressing it, as if the physical size and quantity of the cells is the same, the 4Ah will be able to put out higher currents but for a shorter time.

Richard rich.ms

tdgeek

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#2923878 8-Jun-2022 11:19

richms:

To simply say that a 6Ah pack will be better than the 4 is a very naïve way of expressing it, as if the physical size and quantity of the cells is the same, the 4Ah will be able to put out higher currents but for a shorter time.

That was my point re the video I watched, 4amp cut out after a while the 6amp was fine. Yes range is lost at the expense of output

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sir1963

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#2924060 8-Jun-2022 19:28

I have a range of their 18v One+ tools and I am happy with them all.

The 36v batteries are bigger and bulkier .

My next thing I will look for is a Ryobi Lawn mower that takes 2 x 18v batteries as I already have some.

kotuku4

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#2924436 9-Jun-2022 19:11

I have the dethatcher/scarifier and use my existing 5ah batteries. One is ryobi and two are cheaper chinese knock off batteries.

The tool only comes with fixed steel scarifier blades, the spring dethatcher is extra order part. However it works fine and has removed lots of thatch. I've used it a couple of times. Takes two goes the cover about 230m2 with my old batteries, ie needed to recharge. The batteries didn't seem to get very warm.

mudguard

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#2924447 9-Jun-2022 20:19

sir1963:

I have a range of their 18v One+ tools and I am happy with them all.

My next thing I will look for is a Ryobi Lawn mower that takes 2 x 18v batteries as I already have some.

Ah that's the mower I bought this summer for my tiny lawn. I've actually been quite impressed with it and started using it on the berm too.

I looked at the de-thatcher but honestly thought it was overkill. Our lawn is not much bigger than a really large rug 🤪

tdgeek

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#2924449 9-Jun-2022 20:36

kotuku4: I have the dethatcher/scarifier and use my existing 5ah batteries. One is ryobi and two are cheaper chinese knock off batteries.

The tool only comes with fixed steel scarifier blades, the spring dethatcher is extra order part. However it works fine and has removed lots of thatch. I've used it a couple of times. Takes two goes the cover about 230m2 with my old batteries, ie needed to recharge. The batteries didn't seem to get very warm.

Thats good information, thanks.

Are the knockoff batteries made to be compatible with various brands? The Ryobi one, the B+D one etc? While I assume the male/female connectors are probably standard, the fit may not be per brand (where the battery meets the tool)

Probably not much difference between a 5ah brand and a knockoff battery? All possibly made in China anyway?

Tool wise, I plan to use the scarifier blade to scarify and dethatch, as that suits me prior to annual overseeing, more exposed soil and the furrows.

Did you run the tool N-S then E-W? Thats what I plan to do

Paul1977

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#2924728 10-Jun-2022 14:03

The Ryobi HP stuff can be confusing. Non-HP batteries will work in HP tools, but with less power than with an HP battery. HP batteries will work in non-HP tools, but will not give any power boost over a standard battery. Not all HP tools are branded as HP (I have a hammer drill that has the extra pins for the HP battery, but is not branded as HP anywhere).

I have the scarifier and the dual battery mower.

The scarifier REQUIRES 2 batteries in order to run, I assume it's actually a 36V tool and is running the the batteries in series. It doesn't have the pins for the HP batteries, so gains no benefit from using them.

The mower definitely isn't 36V and can run on a single non-HP battery, but gets a performance boost if that battery is HP OR if you instead use 2 non-HP batteries. If using 2 batteries I don't believe there is a performance benefit in either of them being HP, and there is definitely no benefit in both being HP because only the primary battery slot has the HP pins.

EDIT: To correct getting parallel and series confused.

Bung

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#2924755 10-Jun-2022 14:43

The scarifier would be running batteries in series to add voltage, the mower would be in parallel to add current capacity.

Paul1977

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#2924760 10-Jun-2022 14:58

Bung: The scarifier would be running batteries in series to add voltage, the mower would be in parallel to add current capacity.

Right, got series and parallel confused. Yes, I'd say scarifier is in series.

But the mower must to something in addition to just running the batteries in parallel as it also makes 2x non-HP batteries output equivalent power as 1x HP?

richms

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#2924863 10-Jun-2022 17:22

The speed controller will just be detecting 2 batteries and allowing for more current to the motor. Thats what the extra pins they had on HP tools for a while was doing, but it seems that they have gone away from that or else are slapping HP on tools that dont need more current anymore.

THen there is the lack of HP batteries here whereas they are all over the place overseas. looks like NZ/Au was a dumping ground for the old 18650 based packs while the US was getting the larger 21700 packs.

Richard rich.ms

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