Skip to main content

Repairing a Crate TX15 Taxi amplifier battery

A friend gave me a Crate battery guitar amp that he used for busking. It is a nice 15 watt amp with an internal battery. Sadly it died, and its custom power adapter was misplaced. After several years the battery will fail, and it requires a functioning battery to work at all. Happily, new batteries are inexpensive, readily available, and easy to install.

Photo of Crate TX15

Obtaining a replacement battery for the TX15

The original battery was a 4+ pound, sealed lead battery. Any replacement battery should closely follow the specs of the original. I bought this MightyMax Battery on Amazon, which is a perfect replacement.

There are many batteries that conform to the needs of the TX15, and they can be found at local hardware stores as they are commonly used in lots of equipment. It pays to look locally if you need something faster than Amazon. 

The battery specs are as follows:

12 Volt, 7.2 Ah lead battery (mine was marked 1272).

    • Length: 5.94" (151 mm) 
    • Width: 2.56" (65 mm)
    • Height: 3.94" (100 mm)
    • 4 Lbs, 14.6 Oz
    • F1 terminals (which are a little smaller than F2 terminals)

Photo of the 1272 battery
My TX15's original (dead) battery.

Replacing the TX15's battery

My TX15 is made out of a vinyl-covered wood. To get at the battery:

  1. Unplug the unit
  2. Remove the six screws holding on the front grill (Note: this is a great time to clean up any crud that accumulated under the grill) 
  3. Remove the four screws holding the 8 inch woofer
  4. Remove the woofer. Note it has wires attached.
  5. Remove the speaker wires. Note orientation of wires (on mine, Blue+, White-)
  6. Remove the two screws that hold down the steel battery bracket.
  7. Remove the battery wires and withdraw the battery. Dispose of properly, It cannot go in the trash. Some places will give you a credit it you bring it to them.
  8. Install new battery, reversing the above procedure.
  9. Charge for 24 hours

Replacing the TX15 Power Adapter

Maybe you lost your power adapter or need a new one. The original one for my Crate is a 15 volts DC, 1.25 Amp unit. The center pin is positive.  Since the original adapter was misplaced, I bought this replacement power supply, which supports 15 volts DC and has the correct polarity.

Crate TX15 Power Adapter Label
Label of an original TX15 Power Adapter

 Testing

After charging up the battery for 24.. 28... 48 hours, I got... nothing. This unit will not work if the battery has completely failed, even if plugged in. Therefore I replaced the battery, as noted above, and I'm back in business.
Labels:

Popular posts from this blog

Fixing a SodaStream Jet, part 1: Disassembly Guide

I've had my SodaStream Jet for years, and once in a while something has gone wrong. Disassembly is the first step to repair.  Start with this article to see how to disassemble the SodaStream, and then once you have that down, scroll through my other articles to see how I repaired specfic SodaStream problems. SodaStream Jet Disassembly Guide Tools Required Flat head screwdriver Phillips head screwdriver 1. Remove the Carbonator.  Duh. 2. Remove the black panel lever The front big black tilt lever needs to be removed first. Removing this panel is tricky, but it isn't impossible. Looking up at the bottom of the black panel, there are two tabs, one on the left and one on the right. These tabs fully secure the panel in place. The trick is to use a flat-head screwdriver under the plastic to gently lever the tabs out of the way.  Note in the pictures how I approach these tabs with my screwdriver.  I usually release the left side first, and then I release ...
Read more

Excellent DD-WRT Router for Me: Netgear WNDR3400 / N600

My WiFi performance was suffering, and so I decided to do something about it and upgrade my router. When I say my WiFi performance was suffering, I really mean it:  I live in a large high-rise apartment building and there are 100+ WiFi access points visible from my home office.  All of the contentious traffic was severely curtailing my WiFi reliability.  I was lucky to get 1 Mbit/second throughput.  Sometimes I was lucky to stay connected even with my WiFi router in the same room. I decided it was time to go for 5 GHz, which is a WiFi band which is used less frequently and which has a tougher time traversing walls.  And of course I wanted DD-WRT support.  The set of features I was looking for included: Trouble-free DD-WRT support 5 GHz 802.11n Support Simultaneous dual band capability Inexpensive.  Maybe even cheap.  For me this means under $50.  Under $35 is even better! It sounds like an easy task to bring all this together: A...
Read more

Sodastream Carbonator Leakage, Usage, and Weight

SodaStream 60L "Carbonator" CO2 cylinders have a specific weight when empty, plus about 410 or so grams for the CO2 they should have when they're "full".  A little while ago I went to buy a replacement Carbonator from my local hardware store. The dealer pulled a new Carbonator out of the box and sensed it was lighter than usual.  He put the "light" Carbonator in the "empty" pile and sold me a different one.  At that moment I concluded that it would be smart of me to weigh both new and empty SodaStream carbonators.  Here are the results. Weighing a SodaStream Carbonator - for both Science and Consumer Protection.       The dealer told me that sometimes the carbonators leak after they leave the SodaStream filling facility.  That means there could be an opportunity for customers like me to get ripped off! The SodaStream cylinders I buy claim to have a net product weight of 410 grams - and that means that a full Soda Stream Carbonator shou...
Read more

Macintosh: Upgrading an eMac

It's been a long time since I wrote this article, but the fact remains: The good old eMac can still be useful if you take the simple steps to keep it as good as it can be.  All can run Tiger, and most can run Leopard - great operating systems for their day with a bit of useful life.  This article describes the procedure I used to upgrade my old eMac, including: Replacing the internal hard disk with a large capacity drive. Increasing the memory for performance Upgrading the operating system Here I'm upgrading a 700 MHz eMac, but the procedure and tasks for upgrading other eMac models should be almost identical. Upgrading versus Replacing My sister's eMac is of the 700 mhz variety, with 256 MB of memory. The machine seemed to be getting "slower", and the original 40 GB disk was becoming jammed packed with photos and iTunes, and within a few months she'd be out of disk space. There were two options to address the problems: upgrade the eMac, or go o...
Read more

Fixing a SodaStream Jet, Repair #2 - Broken Fill Button

My Soda Stream Jet's fill button broke, which means I can not longer carbonate water by pressing the pushbutton. This caused all sorts of grief in my household. Here is how I managed to repair my Jet to give it another 10 years of life (hopefully). First, a look at the button The fill button on the top of the SodaStream is actually a simple lever. Pressing down on the button moves a pin that does the actual work of pressing open the Carbonator's valve. Unfortunately, the axis point is fairly thin and can see a lot of stress. That's where my Soda Stream button cracked. [ I think the usage tip here is "don't over-press the button like a gorilla, it doesn't do anything but put high stress on the button."] Cracked levering point of the button The Pesky Lever Retaining Pin The Fix It was pretty easy for me to replace the button: Take off the back of the Soda Stream and remove the carbonator. Push out the the button lever's steel retaining pin. This takes qu...
Read more

Fixing my Wahl 9918 Groomsman Beard and Mustache Trimmer

Not everyone would bother repairing a $25 beard trimmer, but why not fix something for under $5 instead of spending another $25? My  Wahl 9918 Groomsman Beard and Mustache Trimmer  has admirably performed its beauty duty for many years, but the time came when the battery just wasn't holding a charge any more.  Most people would just put the trimmer in the trash and buy a new one, but I figured I could repair my otherwise excellent Wahl and save some money. In fact, even high priced trimmer and rotary shaver brands, like Norelco and Remington, can be easily repaired using a process similar to the one I used to fix my Wahl.  Read on to find out how. I opened up the Wahl by popping off the black plastic faceplate with a tiny flathead screwdriver, which revealed two screws.  By removing the two screws I was able to easily open up the unit, revealing the guts of the device. Backplate off, Revealing the screws The internals are rather simple: a motor, a...
Read more

Other Posts

Show more