![](images/product/b/b-logo.png)
High Reliability
Solar Charge Controller
![](images/product/b/ba.png)
The World's Most Compact Design
In the same class of 10A and 20A solar charge controllers, SolarAmp B is the lightest one in the world. The size is as small as a business card, and it takes less space than other ones in the control box.
![](images/product/b/size.png)
![](images/product/b/sa-ba-all.gif)
Various Product Lineup
Seven models of products could be chosen, according to system voltage (12V/24V), current capacity(10A/20A), types of batteries and the function of auto night detection.
・SolarAmp B load always on
・SolarAmp B auto night detection
・SolarAmp B for lithium battery
Waterdrop Resistant
The housing structure of SolarAmp B prevents water drop from entering.
*It is not waterproof.
Impact Resistance
SolarAmp B has high impact resistance. It has been drop tested from a height of 7 meters.
Night Detection Function
The models with night detection function automatically output to the load from dusk to dawn. The function is suitable for lighting systems such as security lights.
![](images/product/b/night.png)
![](images/product/b/connection.png)
Easy to Install and Use
No installation settings are required. Automatically start after connecting the battery, photovoltaic module and DC load.
*Recommended cable size
10A Models: #12 to #18AWG
20A Models: #10 to #12AWG
Multicolor LED Indicator
Green, yellow, and red, three-colors LED indicates charging status, warning or error.
![](images/product/b/led.png)
![](images/product/b/lowma.png)
Low Self-Consumption
The low self-consumption current brings long-term stabilization and increases system performance.