eBay
20A MPPT solar charge controller battery regulator 12/24V Save 15-30% more power

Description

Are you tired of low efficiency? fack MPPT? no adjustable voltage and high solar panel cost?

Use our  20A 12V/24 MPPT solar charge controller with  efficiency increased by 15-30%!


 Specification:  
 

Rated system voltage

12V/24VDC

Max open circuit voltage of solar panel

15-42V DC

Max solar panel power

275W 12V/550W 24V

Max output current

20A

Max discharge current

20A

Over discharge current

10.2-12.5V(±0.2)12V/20.4-25.0V(±0.2)24V

Restart voltage

10.3-13.5V(±0.2)12V/20.5-27.0V(±0.2)24V

Constant voltage(Over charge)voltage

13.0-15.5V(±0.2)12V/26.0-31.0V(±0.2)24V

Float voltage

12.5-14.5V(±0.2)12V/25.0-29.0V(±0.2)24V

Converter type

Buck

Converter efficiency

>96%

Max increase efficiency

>43%

Tracking efficiency

>98%

Precision of clock

±50S/Month

Charging algorithm

PWM 3 stage:impulse,bulk and float

Five output modes

Manual,Standard;Timer;Light sensor;

Light sensor on +Timer off

Main body

Fully aluminum housing

Standby power consumption

<15mA 12V/<25mA 24V

Operating temperature

-20℃ +50℃

Protect class

IP22

 
 
本 
 
 
It have Over charge, over discharge, overload, short circuit protect functionl.
Can be acted as a power meter which shows battery voltage, charging current, charging power, output status, output mode, time, and accumulate power saving.
 
Application:
suitable for periodicity discharge system, such as solar street light ,solar pump, etc..
 

                                         Why choose MPPT controller?

 <Picture 1 > on charging when using common controller                        
 
2_Copy15 
 
 < Picture 2> on charging when using our MPPT controller
 
ccccc    
 
We know P=UI, so the power is 12x5.54=66.5w. (see pic. 1)
But from our MPPT controller, you can get power up to 18x5.54=12x8.31=100 WATT ! (see pic. 2)
Therefore, when the Vpmax= 18v, Battery voltage Ub=12v, the Eff= 100/65= Vp/Ub=18/12=1.5.
 
In other words, the MPPT controller can increase nearly 50% efficiency than the common controller!
In practical use, the efficiency will be effected by the temperature, sunshine, conversion efficiency, etc..  so usually a good MPPT can increase the efficiency up to 15-30% for you.
 
 
Package Included:

1 piece 20A MPPT solar charge controller


FAQ 

1.  What is MPPT?
    MPPT or Maximum Power Point Tracking is algorithm that included in charge controllers used for extracting maximum available power from PV module under certain conditions. The voltage at which PV module can produce maximum power is called ‘maximum power point’ (or peak power voltage). Maximum power varies with solar radiation, ambient temperature and solar cell temperature.

2. What kind of battery can be used?

  Gel battery and lead-acid battery. 
  Aluminium battery also suitable, but it needs to change setting and only apply for bulk order.

3. Can it charging 12v battery system by 24v solar panel?
   Yes, no problem.

4. How to connect & disconnect  it with solar panel, load and battery.
  connect sequence: Battery(1st)-Load(2nd)-Solar panel(3rd).
  disconnect sequence: Solar panel(1st)-Battery(2nd)-Load(3rd). 

5. What's max solar input?
   50v. over it will be short circuit.

6. Why the voltage is too high?
   Supposed you charge 12v battery, then you need to make sure the panels are connected in parallel to get 18V.
 
 
Some feedabcks coming from our buyers. 
 
 photo initpintu_526F672C_zpsf3ec68eb.jpg

 

Payment

  • We do prefer Paypal for an easy and safe transaction

  • T/T is welcome, please contact our Ebay service group for bank information. we are group

    company based ebay seller, the solar panel producing capacity up to 300MW per year, wholesale

    business is warmly welcomed. company bank account of many currency such as USD, EURO,GBP

    is the best way for bulk order.

  • Credit card to Paypal is acceptable

  • we would be appreciated that you provide us with your bank information.

Delivery details

1. All goods are in stock, the transaction will be handled within 1 business day

2. It takes 7-15 business days to USA by USPS, 15-48 working days to worldwide by CHINA POST. For more details please find below form,
 
Country Delivery Time
Working Days (not including holiday) 15-19 20-32 33-48 >50
Working Days + Saturday + Sunday 21-25 26-45 45-60 >59
Asia country Rate (item arrived ) 90% 10% 0% Refund
Ireland Rate (item arrived ) 40% 60% 0% Refund
United Kingdom Rate (item arrived ) 40% 60% 0% Refund
Greece Rate (item arrived ) 40% 60% 0% Refund
Turkey Rate (item arrived ) 35% 60% 5% Refund
France Rate (item arrived ) 15% 80% 5% Refund
Germany Rate (item arrived ) 20% 70% 10% Refund
Russian Rate (item arrived) 10% 50% 40% Refund
Spain Rate (item arrived) 5% 45% 50% Refund
Argentina Rate (item arrived) 5% 35% 60% Refund
Italy Rate (item arrived) 5% 15% 80% Refund
Brazil Rate (item arrived) 5% 15% 80% Refund

 

3. All items have no tracking no#, if you want to get the tracking no#, please contact us separately.

4. Due to international long distance transportation, so there may something unexpected happened  and delay its shipping,  if you have strict demand in shipping time, please hesitate to buy from us.

5. For international orders, we are not responsible for your import duties, customs charges or other VAT's. Those charges need to be paid by buyers. 


6. If you experience any issues with your order, please contact us first by contact our Ebay service group

Terms of sales

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If you are satisfied with our service, goods quality, shipping time or something else, please leave positive feedback with 5stars to us, which can large encourage us to do better in the future.

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About us

We are a manufacturer and wholesaler of solar panel and concerned renewable energy products, 

Since 2002, we started solar business, most of our engineers are experienced on solar and 

related accessories,if you buy from us, who you deal with is not just a  seller, the whole technical 

team are back on you and your business.OEM and ODM service both available.

we would like to be your best supplier in China.

Contact us

Please, if you have any questions or concerns about shipping time and delivery, contact our Ebay service group by sending messages via eBay system firstly prior on leaving a negative feedback or opening case as we're dedicated to provide you with the best buying experience. 

In general you can get our reply within 24hours during business day.


Working Time: PST: PM16:00-AM1:30     Monday to Friday. 

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