UPS: Wire bridging two batteries in a SmartUPS 1000RM

[Mike]

Hi all

I have a 2 APC SmartUPS 1000RM UPSs, one of which needs new batteries
(since there are no batteries in it at the moment!

Using the good batteries from the other UPS, I see that it has two
batteries bridged with a fused wire. The wire seems to be fused with a
32v 60A fuse...that is, 32v is molded into the plastic, and 60 is on
the end of the fuse. The wire itself has writing on it that says
"1015/1230 600V 105°C FT1"; the battery is 12V 12Ah.

I have two questions. First, is this a wire I can make myself?
Second, do I really need the fuse? I can get the batteries here no
problem, but the wire to connect them is not included and I know that
APC will say that they don't sell the wire independant of their
massivly overpriced batteries.

Any suggestions?

 

[Zeljko]

I had similar problem on same UPS. But I had original fused wire from
original batteries.

You can make Your own wire - at least 2.5 mm2 - be careful for good
contacts with minimized serial resistance.
In each case use the fuse!!! It's too big risk.


"Mike" <gendem@yahoo.com> wrote in message
news:kql430te981qf8ql68t2oqse5j223oslkv@4ax.com...

Hi all

I have a 2 APC SmartUPS 1000RM UPSs, one of which needs new batteries
(since there are no batteries in it at the moment!

Using the good batteries from the other UPS, I see that it has two
batteries bridged with a fused wire. The wire seems to be fused with a
32v 60A fuse...that is, 32v is molded into the plastic, and 60 is on
the end of the fuse. The wire itself has writing on it that says
"1015/1230 600V 105°C FT1"; the battery is 12V 12Ah.

I have two questions. First, is this a wire I can make myself?
Second, do I really need the fuse? I can get the batteries here no
problem, but the wire to connect them is not included and I know that
APC will say that they don't sell the wire independant of their
massivly overpriced batteries.

Any suggestions?

 

On Tue, 17 Feb 2004 13:11:31 -0500, Mike <gendem@yahoo.com> wrote:

Hi all

I have a 2 APC SmartUPS 1000RM UPSs, one of which needs new batteries
(since there are no batteries in it at the moment!

Using the good batteries from the other UPS, I see that it has two
batteries bridged with a fused wire. The wire seems to be fused with a
32v 60A fuse...that is, 32v is molded into the plastic, and 60 is on
the end of the fuse. The wire itself has writing on it that says
"1015/1230 600V 105°C FT1"; the battery is 12V 12Ah.

I have two questions. First, is this a wire I can make myself?
Second, do I really need the fuse? I can get the batteries here no
problem, but the wire to connect them is not included and I know that
APC will say that they don't sell the wire independant of their
massivly overpriced batteries.

Any suggestions?

YES! You need that fuse. If you get a shorted transistor, that's
what'll prevent a disasterous meltdown/fire. Nothing real special
about the wire other than the gauge (thickness). Go hit the
automotive store and get a 60 amp fuse, holder, and heavy gauge wire.
I don't have a unit infront of me at the moment, but 10 gauge wire
should be adequate.

-Chris

 

[Jerry Greenberg]

This is a 60 Amp fuse that is also thermo protected. It is safety
essential, and should never be bypassed!

You can pry off the origional fuse unit, and re-install it to the new
batteries. Clean the bottom surface, and use two-way adhesive tape to
put it back on to the new batteries. High temperature rated adhesive
is best. It must be surface contacted to the new batteries, to sense
their temperature. You will notice that the two old batteries should
be stuck to each other. If this is so, then you should use some
adhesive tape to do the same to the new ones.

The temperature part of the fuse is needed in case of a short in the
charger, or something else that would cause the batteries to be
overheated. The current rating of the fuse is to protect against a
short.

If there is a defect, the batteries, can cause a fire, or serious
fumes emissions if not protected. This fuse will go open at 105 deg
Cels, or if the load exceeds 60 Amps, the fuse will also go opened.


Jerry Greenberg
http://www.zoom-one.com

--



Mike <gendem@yahoo.com> wrote in message news:<kql430te981qf8ql68t2oqse5j223oslkv@4ax.com>...

Hi all

I have a 2 APC SmartUPS 1000RM UPSs, one of which needs new batteries
(since there are no batteries in it at the moment!

Using the good batteries from the other UPS, I see that it has two
batteries bridged with a fused wire. The wire seems to be fused with a
32v 60A fuse...that is, 32v is molded into the plastic, and 60 is on
the end of the fuse. The wire itself has writing on it that says
"1015/1230 600V 105°C FT1"; the battery is 12V 12Ah.

I have two questions. First, is this a wire I can make myself?
Second, do I really need the fuse? I can get the batteries here no
problem, but the wire to connect them is not included and I know that
APC will say that they don't sell the wire independant of their
massivly overpriced batteries.

Any suggestions?

 

On 19 Feb 2004 04:12:51 -0800, jerryg50@hotmail.com (Jerry Greenberg)
wrote:

This is a 60 Amp fuse that is also thermo protected. It is safety
essential, and should never be bypassed!

You can pry off the origional fuse unit, and re-install it to the new
batteries. Clean the bottom surface, and use two-way adhesive tape to
put it back on to the new batteries. High temperature rated adhesive
is best. It must be surface contacted to the new batteries, to sense
their temperature. You will notice that the two old batteries should
be stuck to each other. If this is so, then you should use some
adhesive tape to do the same to the new ones.

The temperature part of the fuse is needed in case of a short in the
charger, or something else that would cause the batteries to be
overheated. The current rating of the fuse is to protect against a
short.

If there is a defect, the batteries, can cause a fire, or serious
fumes emissions if not protected. This fuse will go open at 105 deg
Cels, or if the load exceeds 60 Amps, the fuse will also go opened.


Jerry Greenberg
http://www.zoom-one.com

I would guess the 105*C is the temp rating for the wire's insulation.
I've never seen an APC unit with a thermal fuse.