I NEED TO KNOW WERE TO BUY A DMU 6-3 6v3ah BATTERY

Red, Yellow, Green are the battery level indicators, Red being the lowest like a fuel gauge. If the green comes on right away after plugging in the charger then it must not indicate the charge cycle. If its a 3Ah battery whats the charger output amperage? Then you could just do the math to figure out how long it would take to charge that battery to full with the output. Otherwise it shouldn't hurt it to leave it plugged in overnight or at least a few hours to charge it.

jwgbounder,
despite the relatively recent acquisition,
apparently Black & Decker no longer services Vector products either.
They sold their Vector line to Baccus Global LLC as of about August 2010
(see http://support.blackanddecker.com/app/answers/detail/a_id/5771 ).

I have the same lamp you do, and here's how I recently replaced my battery.
Replacement source for Vector Spot battery "SEL DMU6-6":
the Tempest TR6-6 at BatterySpec
@http://www.batteryspec.com/cgi-bin/cart.cgi?action=link&product=313 .
(I suggest avoiding their TR6-6A for Vectors Spotlights: it's a little bigger, and may not fit.
Also, BatterySpec suggests the Tempest 5-6A as an equivalent for the original "SEL DMU 6-6";
that's only equivalent if5ah=6ah. Caveat Emptor).
You can see the actual specs on this product at (the manufacturer)
Tempest's web site: http://www.tempestbatteries.com/html/tr6-6.html.
This seems to be a virtually identical battery as Vector's original "SEL DMU 6-6" in every way but one.
Vector's battery had one F1 (.187"wide) terminal,
and one F2 (.250" wide) terminal.
On the BatterySpec's Tempest, both terminals are F1.
This was no problem: the Vector lamp's leads snap snug and secure over both terminals.
I paid $10.90, plus $10.13 shipping, ordered on Saturday morning 10/23,
got a shipping confirmation from their San Jose CA warehouse Monday evening 10/25,
and received it in Virginia on Monday morning 11/1/2010.

11/5 update: battery charged, and the lamp works great.

You can get compatible replacement batteries for your ride-on toy from here.
John Deere Ground Loader Peg Perego Ride On Toy Battery 12 12 AH F2... You can just change the battery and use the plastic casing and wires attached to your current battery. This will save you a nice sum of money. It is not hard to do. Check this video to see how to do it.

In March, 2006, Black & Decker purchased Vector Products, Inc. Since the acquisition, Black & Decker has assumed the manufacturing of all Vector products. For customer service and warranty information for Vector products, please contact Black & Decker Customer Service. Or, you can order a replacement battery from: www.batterymart.com/p-6v-4_5ah-sealed-lead-acid-battery.html

Try www.batterymart.com
www.batterymart.com/c-03-6-volt-sealed-lead-acid-batteries.html

You can order one from Black and Decker, they purchased Vector in 2006 and have all the parts you need, here is the link; http://www.dewaltservicenet.com/servicenet_home.aspx?AspxAutoDetectCookieSupport=1

Batteries inc stores (if you have one in your town) or their website, can replace almost any battery Vector uses. You dont need the model number of the battery or spotlight, just give them the old battery,
OR if working by website, give them: the dimensons of the battery (h, w, d,), the voltage, and the amp hour rating. They will find one that is the same voltage, close to the same dimensions or a little smaller, and close to the same amp hour rating. The only thing that must be exact is the voltage.
NOTE: there are many websites that sell lead-acid batteries, I have personally used batteries inc. at www.batteries-inc.com

Exact replacement battery.
www.batterymart.com/p-6v-4_5ah-sealed-lead-acid-battery.html

I just ordered 5 batteries of same size and spec from:
http://www.atlantalightbulbs.com/ecart/nw012104/YUNTONGYT-660(6V6AH.20HR.htm
$9.34 per plus shipping.

I found another compatable but it was only a 5 Amp/hr battery. The above link is a direct replacement for the SEL DMU 6-6 6V6AH battery that came with the dual spotlight.

Measurements, electrodes exactly the same..

They just call it a YT-660 made by Yutong...

You are welcome...

I need a new power supply for my Vector Spotlight, Model VEC127Y. Any suggestions as to where one can be purchased?
John [email protected]