Re: (ET) Ryobi mower

["Joel Parks" <et jpjt net>]

If that's the Ryobi BMM 2400, you should know there is a fuse internal to 
the case in the charger circuit that blows regularly.  I used to think it 
blows when there's a slight surge in the line voltage, but I suppose it 
could be when there's a sag and the current draw increases?  Don't quote 
me, 
I'm a sw eng not an ee.

I forget the details of the fuse (value, size, etc.) but I replaced mine 
with a panel mount fuse holder that I mounted through the back panel next 
to 
the charger line cord input.  THen whenever it blew I could replace it 
without taking the cover off the mower and the internal cover off the 
charger circuit.  Whatever engineer signed off on that design/assembly 
should have his credentials examined.  I'd bet that arrangement is the 
reason Ryobi bailed out of the cordless mower biz., too many warranty 
claims 
for a blown fuse.

The 24V 18Ah batteries are hard to find ( = pricey) but easier to find are 
a 
pair of 12V 18Ah in 1/2 the form factor, so you just duct tape or tiewrap 
them together under the original tiedown, or get more creative.  And of 
course add a jumper from one - to the other +.  I saw them listed for 
about 
$35 each at gotbatteries.com yesterday...(Powersonic 12 Volt/18 Ah 
PS-12180 
SLA)

So maybe the battery is fine and the charger circuit has a blown fuse.  
And 
if that's the case, $50 is a good price for that machine.

----- Original Message ----- 
From: "Neil Dennis" <wombatt gmail com>
To: "et" <Elec-trak cosmos phy tufts edu>
Sent: Saturday, June 16, 2007 4:55 PM
Subject: (ET) Ryobi mower


Looks like I've got a cordless Ryobi with a defunct battery, anyway it
won't charge up.  If anyone wants to pick it up here, cost will be $50,
looks to be in good shape otherwise.

I really don't need it as I've still got the B&D.

wombat

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