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Trailer Breakaway Kit Battery Charger

Trailer Breakaway Kit Battery Charger

Item # 20011
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20011 - Battery Charger Hopkins Trailer Breakaway Kit
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Call 800-298-1624 to order Hopkins accessories and parts part number 20011 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price and Fastest Shipping for Trailer Breakaway Kit Battery Charger. Accessories and Parts reviews from real customers.
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Hopkins Accessories and Parts - 20011

  • Trailer Breakaway Kit
  • Battery Charger
  • Hopkins


Replacement Battery Charger for Trailer Breakaway Kits

  • Black wire is connected to the vehicle battery to get the charge
  • Red wire is connected to battery in the breakaway kit on the trailer
  • Blue wire is connected to the breakaway switch


20011 Trailer Breakaway Kit Battery Charger




California residents: click here


Video of Trailer Breakaway Kit Battery Charger

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hopkins Trailer Breakaway Kit Battery Charger Installation

Today on this enclosed trailer were going to install part number 20011 from Hopkins. This is their trailer breakaway kit battery charger. Right now, looking at our trailer the way its hooked up is that it does not have a battery charger. It has a 12 volt power lead coming off the towing vehicle going straight to the battery that will charge the battery, but over time that could overcharge the battery, especially on a long trip. Were going to install our battery charger. The first step is we will go ahead and locate the wiring that comes off the battery charge from the towing vehicle and we will hook that up to the black wire.

Next we will go ahead and take the red wire and we will hook that up to the battery on the trailer, that way the battery will be getting a charge. Now the blue wire coming off the charger will go out to our breakaway switch. You can use a variety of different connections. In this case we will be using wire nuts. Once our connections are made we can take our charger and tuck it in next to the battery.

With that, that will finish it for our install of part number 20011 from Hopkins on this enclosed trailer.


Customer Reviews

Trailer Breakaway Kit Battery Charger - 20011

Average Customer Rating:  4.8 out of 5 stars   (38 Customer Reviews)


- 20011
by:

Great little electric brake battery charger. Easy install. Fast shipping and a great price. Thanks etrailer. Definitely buy from etrailer again.


Comments
After a year works like the day I installed it.
Eloi D - 05/11/2021


- 20011
by:

Received on time, installed easily, only time will tell if it dies its job. Thank you



- 20011
by:

Great product for horse trailers like mine whose manufacturer was too cheap to include. Easy install and wires are marked where they go. Fairly priced too.


Comments
Product working perfectly after 1 year. No complaints.
John - 10/30/2018



- 20011
by:



- 20011
by:

A simple low cost solution that is easy to install. Installation took about 20min. In my opinion every trailer from the factory should have these pre- installed but many don't and without one the small breakaway battery will charge at too high a rate and probably overcharge, both of which can shorten the life of the battery.



- 20011
by:

It gives me peace of mind knowing that my trailer battery is being charged while I'm driving down the road on a trip since the trailer/battery sits most of the year. This item was easy to install. The harder part was the van wiring, connecting a wire to the van's trailer connection so that the charger thing could work.



- 20011
by:



- 20011
by:

GREAT SERVICE AND SUPER PRICE. THANKS ETRAILER



- 20011
by:

I bought TR20048, and after about 2 years the charging circuit started malfunctioning. There are no replacement parts for TR20048. So I removed the original circuitry from the TR20048 and replaced it with 20011. 20011 does not have LED indicator lights, but it charges the battery without overcharging and is very inexpensive.



- 20011
by:

Still working great - just checked battery voltage after being parked a few days: 12.90 on the SLA alarm-type battery, so it's certainly working. Always forgot to maintain, or even check the last battery - have no idea when it actually died. Wiring in this regulator ensures that it will have a much better chance of actually working IF I ever need it to. Lets hope not. ;)



- 20011
by:

great little battery charger fit into breakaway box just fine. I use it on a double axle utility trailer. It will keep trailer break away battery charged up



- 20011
by:

It took about 5 minutes to install this charger. I can't understand why trailers don't come with these from the manufacturer. Etrailer is great, and we'll be doing more business in the future. I have a few trailers, and I can't imagine needing anything that Etrailer doesn't carry.



- 20011
by:

I like your website its got everything I need for my trailers and will come back and order again. Couldn't find any of these products locally found everything on etrailer.com. Great site.



- 20011
by:

Does not come with any instructions, so get the wire coding off the internet here. Tiny, will be easy to mount in the battery box.



- 20011
by:

Easy installation. Durable connectors. Has worked great. Would highly recommend this product.



- 20011
by:

Does what it's supposed to. Easy to ins tall



- 20011
by:

I have installed the battery charger, and it seems to be working fine. I was impressed with the quick delivery and good packing.



- 20011
by:

Delivery was quick. Parts worked great.



- 20011
by:

Installed easily with instructions prov ided.



- 20011
by:

Inexpensive solution to ensure your battery doesn't overcharge.



- 20011
by:

The product was exact;y as advertised, shipped & received promptly and was a snat to install!!



- 20011
by:

Olivia M . was great. She is a great asset to your business.



- 20011
by:

happy with everything



- 20011
by:

Received quickly and product meets my n eeds!



- 20011
by:

Works well!


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Show More Reviews

Ask the Experts about this Hopkins Accessories and Parts

  • Which Wire From Breakaway Switch Does Blue Wire from Hopkins Charger # 20011 Connect To
    The blue wire from the Breakaway Kit Battery Charger # 20011 will go to the power (likely black) coming from your breakaway switch, such as with the Hopkins Break-Away Switch # HM20010. The other wire from the breakaway switch should be spliced into the brake output wire coming from the back of the trailer's 7-Way connector. I have attached full breakaway kit wiring diagram that you might find helpful as well.
    view full answer...
    Image 1 for
  • Can a Trailer Breakaway System be Run off of Existing Trailer Battery
    A breakaway kit can be wired in one of two ways to the trailer brake system. The first way would be to use the Engager Trailer BreakAway Kit with Charger and Tester, item # 20099 , and splice off of the power wire that maintains the trailer's battery on the trailer to charge the battery included in the kit (see instructions). This is the recommended method of installing a breakaway kit since many states require that a breakaway kit with separate power supply be used. The second option,...
    view full answer...
  • Converter to Allow Fridge to Draw Power from Battery or RV Service Power
    What you'd want is a converter/smart charger like the Progressive Dynamics part # PD4060K which you'll wire your battery, RV service power supply, and fridge and it will allow you to charge the battery and draw from the RV power source when it's plugged in.
    view full answer...
  • Battery Charger for Trailer-Mounted Auxiliary Battery
    A trailer breakaway battery charger kit like # 20011 will be needed only on a trailer that does have electric drum brakes and a breakaway system like the Hopkins # HM20001. For maintaining a trailer-mounted battery that supplies power to lights, vents, etc you can use the 12V power circuit in the 7-way connector. This 12V feed is carried on the pin at the 1-o-clock position as you view the 7-way socket. Please refer to the linked photo and article. This 12V feed has enough power to...
    view full answer...
    Image 1 for
  • Can Trailer Breakaway Kit Battery Charger be Used With Battery on Trailer
    Yes, you can use the Trailer Breakaway Kit Battery Charger # 20011 from the main trailer battery. You will not want to attach the red wire to the switch battery positive and blue to the negative. To install, what you need to do is connect the black wire on the charger to the positive side of your trailer's 12 volt battery that you mentioned is kept in a charged state by the solar panel. The red wire on this charger will connect to the battery in the breakaway kit and the blue wire is connected...
    view full answer...
    Image 1 for
  • Battery Charger for a Trailer Breakaway Kit Battery
    Generally a breakaway kit is installed mounting the battery to the frame but it doesn't have to be. We carry a few different chargers separate from the kits themselves and I've linked our selection for you. The most popular of the chargers if the Hopkins # 20011. To install the Hopkins charger the black wire connects to the power coming from the vehicle battery, the red wire to the breakaway kit's battery, and the blue to the pin. I've also linked a video for you.
    view full answer...
  • How Do Trailer Batteries Normally Get Charged When Being Towed
    What most people do to put a maintenance charge on a deep cell battery like yours that is on a trailer is to run a 10 gauge wire from the 12 volt accessory circuit on the 7-way directly to the positive post of the battery. A battery of your size can only have a maintenance charge put on it through the trailer connector though since the wire gauge is pretty small. The silver lining to this is that you would never have to worry about the battery getting over-charged.
    view full answer...
  • Can Hopkins Breakaway Battery Charger # 20011 Charge AGM Breakaway Battery
    Yes, the Hopkins breakaway battery charger part # 20011 that you referenced can charge a 3.5 amp AGM battery.
    view full answer...
  • How to Wire the Trailer Breakaway Kit Battery Charger Part # 20011
    To answer your question yes, the Trailer Breakaway Kit Battery Charger part # 20011 can be used to charge your breakaway battery while drawing power from the 12 volt auxiliary battery on your trailer. However, most local and state regulations require that the breakaway battery receive a charge from a battery not mounted on the trailer therefore, I recommend using the Trailer Breakaway Kit Battery Charger part # 20011 to pull power from the vehicle's battery via the 12 volt pin on the 7-way...
    view full answer...
  • How is Trailer Battery Charged from Trailer 7-Way Connector
    If you wanted to run a maintenance charge to your trailer's battery you'll need to run wire directly from the battery's positive terminal to the 12 volt power circuit of the 7-way. You'll want to use 10 gauge wire like part # 10-1-1. There would be no need to wire in a charger as well since just the wire will deliver the maintenance charge. It won't charge a dead battery though. You'd have to use a wall charger for that like the CTEK # CTEK56353 when the trailer is parked.
    view full answer...
  • How Does a Break Away Battery Charger Wire Into a Trailer Break Away System
    A break away switch, like # HM20010, has a pin it that when pulled out completes a circuit from the battery mounted on the trailer to the trailer brakes. This allows the battery to apply voltage to the trailer brakes to stop the trailer should it become disconnected from the tow vehicle. The charger, # 20011, receives 12 volt power from the tow vehicle on the black wire. It sends this power to the break away battery on the trailer to provide a maintenance charge along the red wire. The...
    view full answer...
  • Will the Hopkins Trailer Breakaway Battery Charger Work for an Auxiliary Battery on a Trailer
    Yes, you can use the Hopkins Trailer Breakaway Kit Battery Charger, # 20011, with the motorcycle battery on your motorcycle trailer. Like you said, you would simply tie-off the blue wire since it will not be used. This charger will maintain the charge on your battery and even provide a small charge when you are connected to the tow vehicle. The benefit of adding this charger to your battery is that the charger will stop sending power to the battery once the battery is fully charged....
    view full answer...
  • Can a Trailer Mounted Battery be Charged Up Using a Breakaway Battery Charger
    A charger such as # 20011 will not be able to charge up a regular battery, only small breakaway batteries. The issue is that the wiring on the trailer and vehicle is not large enough and the alternator is not strong enough (on most vehicles) to push back the amperage required to charge up a battery. At best it can only maintain the charge level of the battery. Also, you will want to disconnect the breakaway battery from the larger battery. Otherwise it will just drain it and also shorten...
    view full answer...
  • Do Trailer Breakaway Batteries Apply Enough Power for a Dual Axle Trailer with 4 Brake Assemblies
    Any battery that is used in a breakaway system on a trailer needs to be able to sustain full braking power to the trailer brakes for at least 15 minutes to be in compliance with various laws in regions that require breakaway kits. The batteries we sell meet the requirements and where designed for that purpose for 2 axles. Always make sure that brake away batteries are fully charged before using them. The Engager Trailer BreakAway Kit, # 20099, is our most popular option. It comes with...
    view full answer...
  • Wiring Functions of Hopkins Trailer Breakaway Kit Battery Charger 20011
    Trailer Breakaway Kit Battery Charger # 20011 is indeed a charger. When using it the black wire connects to the 12 volt power circuit coming from the tow vehicle. The Red wire connects to the breakaway battery on the trailer. The blue wire connects to the breakaway switch. I have linked a video that shows installation of this charger to better illustrate how it installs.
    view full answer...
  • Trailer Breakaway Kit Battery Charger 20011 Operating Temps, Current Draw, Type of Charging
    I spoke with a technical adviser at Hopkins, the maker of this charger and he said the safe operating temperatures for this Trailer Breakaway Kit Battery Charger, part # 20011, is between -20 degrees and 140 degrees Fahrenheit. The max current draw is 5 amps and uses a trickle charger, yet shuts down when the charger is full.
    view full answer...
  • How Large Of Battery Can Hopkins Trailer Breakaway Kit Battery Charger # 20011 Trickle Charge
    I contacted our representative at Hopkins and he informed me that the Trailer Breakaway Kit Battery Charger, part # 20011 can charge batteries of different sizes, even large batteries, it will just take a bit longer. He informed me that part # 20011 will trickle charge your regular 12 volt battery just fine. If you do have the vehicle battery connected directly to the battery on trailer it will keep sending power to the battery even after the battery is charged, which could be bad for...
    view full answer...
  • Vampire Draw on Trailer Breakaway Kit Battery Charger
    There is not a breakaway kit battery charger, including the Hopkins # 20011 that will eliminate vampire draw completely. I do strongly recommend taking a look at the help article I added on trailer breakaway kit installation. Going by this should help you maintain your battery charge if by some chance you have not wired yours the same way.
    view full answer...
  • Can 12V Feed from Vehicle 7-Way Overcharge Trailer Battery
    You don't need to install any other parts in line with your 12V trailer battery line. Because the current being sent through the 7 pin power wire is so low, it acts more like a trickle charge to simply keep your battery topped off. It is not powerful enough to actually provide a full charge to your trailer battery, so it couldn't overcharge it even during a long trip. The Breakaway Kit Battery Charger # 20011 is used to prevent overcharging the smaller battery in a breakaway kit, like...
    view full answer...
  • Powering a Refrigerator in a Trailer While Towing
    Some items in a trailer or RV will run off of 12 volt DC power or AC power so if your fridge runs when not connected to shore power then it will run off of the battery. That battery can receive a maintenance charge from the 12 volt circuit on a 7-Way trailer connector but the fridge would draw power faster than the 12 volt circuit can charge. What you would need to do to provide the best charge to the battery is use a DC to DC charger while you are towing such as # 331-BCDC1240D. If...
    view full answer...
  • Recommendation For Maintaining Battery Charge On Trailer When Disconnected From Tow Vehicle
    You are correct that the trailer connector on your vehicle will maintain a battery on your trailer and will not charge it when connected. The wiring on the trailer connector is not big enough to draw all of the voltage form the alternator causing it harm. It will not however charge a battery once it is dead. I am not aware of a smart charge system as you described that detects and maintains the amount of current being used on your trailer. The options you have are to use shore...
    view full answer...
  • How to Charge Two 12 Volt Batteries on an RV Towed by a Ford F-150
    The 12 volt circuit on a 7-Way trailer connector can provide a maintenance charge to a 12 volt battery but it will not be able to fully charge it because the wiring for a 7-Way is too small to carry the current required. What you can do to charge the batteries on the RV is to first install a battery isolator, # TR118665, in the truck. You will need to attach one terminal to the positive on the truck battery and then connect the center terminal to a 12 volt ignition source (something...
    view full answer...
  • Trailer Brake Controller Only Works with Pin Pulled on Trailer Breakaway Kit
    This does sound like a short or a ground issue. It could also be corrosion inside or on the trailer connectors. You can test the charger by applying 12 volts of power to the power wire on the charger and then testing the output side to the breakaway battery on the trailer using a circuit tester like # PTW2979 to see if it is applying power to the system. Make sure that all ground from the main trailer connector, to the breakaway system, and on to the brake magnets are all grounded to...
    view full answer...
    Image 1 for
  • Hopkins Trailer Breakaway Battery Charger Gets Hot
    Battery chargers do get hot, especially if plugged in for long periods of time. If it is so hot that you can't even touch it then that would be a problem, a short somewhere either with the wiring or internal on the charger. On the wiring make sure there are no pinched, frayed or damaged wires and fix as needed. Make sure that the black wire is connected to the 12 volt circuit coming from the vehicle, red is connected to the positive breakaway battery terminal, and blue is connected to the...
    view full answer...
  • Can Battery Charger 20011 and a Solar Panel Provide a Maintenance Charge to a Polaris SXS Battery
    The solar panel will keep the battery from draining while sitting but if power is drawn from the battery the solar panel and charger will not be able to charge up the battery. The charger # 20011 is designed for small 5 amp hour batteries in breakaway systems. A charger such as # 331-BCDC1240D is better suited for use with a solar panel.
    view full answer...
  • Where Do Wires of Hopkins Breakaway Charger # 20011 Go To
    For the breakaway batter charger part # 20011 that you referenced the black wire would get connected to the vehicle battery to get the charge, the red wire is the wire that gets connected to the battery in the break-away kit on the trailer, and the blue wire is the wire that gets connected to the actual break-away switch. I attached an install video link for this for you to check out as well.
    view full answer...
  • Trailer Breakaway Kit Battery Charger Wire Functions
    Each of the wires on the Trailer Breakaway Kit Battery Charger, part # 20011, have a specific function, but none of them are grounding. The black wire goes to your vehicle battery, the red wire goes to your trailer breakaway battery, and the blue wire goes to your break-away switch.
    view full answer...
  • When Running Battery Charge Wire on Trailer is a Ground Wire Needed as Well
    If you are running a 12 volt power line to the battery of your trailer there would be no need to run a separate ground wire. You are charging the battery of the trailer and not operating an accessory with that line so it would not need to have a ground to the battery as well. Similar to an alternator charge wire on a vehicle. There isn't a ground wire ran from the alternator to the battery as well.
    view full answer...
  • Can Breakaway Battery of Trailer be Charged with Battery Charger
    Yes, a standard battery charger like the CTEK part # CTEK56865 can be used to charge the breakaway battery of your trailer when it's not in use.
    view full answer...
  • Wire Recommendation for Maintenance Charge of Trailer Battery
    The part # 20011 that you referenced is designed to charge a breakaway battery (which is very small). It sounds like you are looking for something to put a maintenance charge on a larger battery. Which if so you would instead want to run a length of 10 gauge wire like part # 10-1-1 from the 12 volt accessory circuit of your trailer wiring to the positive battery post. A thicker gauge wire will do a much better job charging a battery as opposed to the thinner wires of the # 20011.
    view full answer...

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