Solar Controller by Battery Tender
Item #: 021-1162   |    In Stock

Solar Controller by Battery Tender
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Solar Controller by Battery Tender

Item #: 021-1162   |  In Stock

Price: $24.95
Free Shipping! Free Shipping

Price: $24.95

Best Value
Free Shipping
3 Year Factory Direct Warranty
Brand New
100% Compatibility

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Product Specifications for Solar Controller by Battery Tender

BM Part #: 021-1162
Type: Amorphous Thin Film
Length: 4.25"
Width: 4.25"
Height: 1"
Shipping Weight: 1.00Lbs
Warranty: 3 Year Factory Direct
Datasheet: Download
Free Standard Shipping

Order today and receive free standard shipping on your Solar Controller by Battery Tender. Only valid in the contiguous 48 states and not valid with any other offer. Physical address required (No PO Boxes).

Not for use with the Battery Tender solar panels. A controller is built in to Battery Tender panels.

Battery Tender Solar Controller allows you to convert an existing solar panel into a solar charger using Battery Tender patented Super Smart Charging Algorithm. Usable input range between 5-45 Watts!

Product Features

  • Convert any existing solar panel into a solar charger
  • Battery Tender Solar Controller has a usable input range between 5-45 watts
  • Fully automatic: Prevents your battery from either overcharging or undercharging
  • Keeps the excess voltage from damaging the battery

Tech Tip: Using Multiple Solar Panel Charge Controllers

If you use a two (or more) way pigtail, you can connect one solar panel to multiple controllers. Each controller would allow charge voltage until the battery reached a full charge status. Before you connect your panel this way, you should be aware of:

  • The batteries should be disconnected from any application in which there are any draws. While charging this way, there should be zero draws on the batteries.
  • Using the solar panel in this way will divide the amp output of the charger by the number of batteries and also reduces the charge output by the operating needs of each charge controller.
  • Typically, this configuration would be used to maintain already fully charged batteries, as long as there are no draws on the batteries.

As sulphation tends to build on the lead plates of a battery faster when the battery is in a lower voltage state, the battery should be fully recharged in the shortest reasonable amount of time to help prevent the build up of load robbing sulphation on the plates. Solar panels, which generally have lower output than other chargers (that plug into a wall socket) are most often used to maintain fully charged batteries while they are not in use. They are very slow to recharge batteries from a discharge.

7 Reviews | 4.9 out of 5
5 stars (6)
4 stars (1)
3 stars (0)
2 stars (0)
1 star (0)
Would recommend this product.
What our Customers are saying
great experience
February 27, 2018
by on February 27, 2018

product is great and the service was even better

lancaster Ca
Would recommend to a friend?
seems to be workin ok,,,
March 6, 2015
by on March 6, 2015

item shipped and received promptly and seems to be working ok,,

longhorn 1611
Would recommend to a friend?
product worked perfect for my situation
May 15, 2014
by on May 15, 2014

Installed in battery compartment of RV to keep house batteries charged along with solar panel I received as a gift. In the short period I have been using this product it has performed just as I expected of Battery Tender product which I have used before on a Motorcycle I had owned.

Would recommend to a friend?
Works as advertised
May 10, 2014
by on May 10, 2014

Maintain a full charge on a spare vehicle

Camarillo, CA
Would recommend to a friend?
A great Controller at a very reasonable
September 10, 2013
by on September 10, 2013

Controls the proper transfer of power to the battery (ies) to ensure they are charged and ready for use.

Jim the hunter
Orlando, Fl.
Would recommend to a friend?
Great Service
August 6, 2013
by on August 6, 2013

I will use it to keep my battery fully charged without overcharging and damaging it.

San Juan, PR
Would recommend to a friend?
Battery Tender solar controler
August 1, 2011
by on August 1, 2011

I use this charge controler to maintain my motorcycle battery along with a 5 watt solar panel. Without the controler the solar panel would actually kill the batterybut now they both work great.

Happy Harley Ro
Would recommend to a friend?