Maximum Power Point Tracking (MPPT) solar charge controllers are significantly more efficient than the cheaper Pulse Wave Modulation (PWM) solar charge controllers.
Please be very careful when buying this type of MPPT charge controller as there are charge controllers on the market which have model numbers such as MPPT T40 which are only PWM charge controllers. A true MPPT solar charge controller needs a large transformer coil and capacitors inside, it is a bigger heavier unit and will usually takes at least 100V-150V input.
An MPPT solar charge controller in cool conditions can produce 25-30% more battery charging power than a simple PWM controller and you can connect high voltage panels to lower voltage battery banks. By using higher voltage on the panel side will also benefit by less volt drop and can use thinner cables. On large arrays we run everything at 100V - 150V.
EPSolar charge controllers have established themselves for almost 10 years. We are offering their latest EPEver range of excellent value Tracer A series and iTracer MPPT solar charge controllers. Epsolar/ EpEver has passed ISO9001. All products have CGC-solar, CE, ROHS, FCC and ETL certificates and are sold in over 120 countries worldwide
Cheaper PWM charge controllers are a good low cost solution for small systems only. To fully exploit the potential of MPPT charge controllers, the solar panel array voltage should be substantially higher than the battery voltage and is generally recommended for systems of 100-150W and upwards. The MPPT controller enables higher PV system voltages which can then reduce cabling costs by allowing for smaller cable cross sectional areas. The MPPT controller will also harvest substantially more power when the solar cell temperature is low (below 45°C), or very high (above 75°C).
To calculate which size controller you need, take the peak solar panel watts and divide by the / battery voltage to give the MPPT rated charge current in Amps, for example 150W/12V = 12.5A, therefore a 20A rated charge controller is recommended.
Tracer AN Series – product features
Technical - Tracer AN Series 1210AN
Technical - Tracer AN Series 2210AN
Technical - Tracer AN Series 3210AN
Technical - Tracer AN Series 4210AN
Maximum PV Array input power - All Models
When the PV array is connected to the charge controller with correct polarity, the Max. PV Array Power must not exceed three times the Rate Charge Power.
These MPPT controllers have a limiting function on charging current to protect the components and circuits. They will charge the battery(s) within the rated charging power even if PV input power exceeds this range, for example
1, If the PV array output power is less than or equal to the rated charge power above, the controller will charge the battery(s) at the actual maximum power point;
2, If the PV array output power is greater than the rated charge power above, the controller will charge the battery(s) at the maximum rated power.
This should be taken into account when designing the PV array power output which may peak during summer months causing some surplus generation in off-grid systems. For larger PV arrays, this solar charge controller may only form part of the overall system where some of the power generation is channelled into battery storage and the remainder of power generation may have real time usage/ consumption.
Model - Epever eBox-BLE-01 Bluetooth Adapter
Product Description
Real time wireless monitoring function of solar controller and inverter
Applicable Models :LS-B series VS-A series VS-BN series Tracer-A series Tracer-BN series SHI series STI series eTracer-AD series eTracer-BND series iTracer-ND series
Support mobile phone APP, plug and play, simple and convenient to set
Adopt Bluetooth 4.0 and BLE technology
Fast communication, strong anti-interference ability
Technical Specification
Model - Epever eBox-WIFI-01
Product Description
eBOX-WIFI-01 RS485 to Wifi Adapter ,Real time wireless monitoring function of solar controller and inverter
Support mobile phone APP (Android or IOS), plug and play, simple and convenient to set, follow the manual and note ,easy to play .
Use high performance CPU with core M4 ,Ultra-low power consumption and high speed data processing capability
Fast communication, strong anti-interference ability No need of external power supply Communication distance up to 10 m Master reset adapter
Applicable Models EPsolar EPEVER brand Solar Charge Controller series : Tracer-A , Tracer-AN , Tracer-BN , LS-B , VS-A , VS-BN , eTracer-AD , eTracer-BND , iTracer-ND series
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Low Energy Supermarket was founded in 2010, we offer various energy saving products which help to reduce the ever rising energy bills.
We only offer quality products at a competitive price.