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FOXSUR 12V 20A Automatic Smart Battery Charger, Maintainer & Desulfator for Lead Acid Batteries, Car Battery Charger HI-Quality

20 reviews
100% of buyers enjoyed this product! 36 orders
US $183.30
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• Microprocessor Control (CPU). • 7-STAGE AUTOMATIC CHARGING: • This is a fully automatic battery charger with 7 charge stages. • Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely. • 7-stage charging is a very comprehensive and accurate charging process that gives your battery longer life and better performance compared to using traditional chargers. • 7-stage chargers are suitable for most battery types including Calcium, Gel and AGM, Wet batteries. They may also help restore drained and sulphated batteries. • Types of batteries: Most types of lead acid batteries including Calcium, GEL and AGM, Wet • Switchmode technology: Yes • Polarity protection: Yes • Output short protection: Yes • Non battery link protection: Yes • Over voltage protection: Yes • Over temperature protection: Yes • Cooling fan: Automatic temperature controlled. • Input voltage: 180-260V AC, 50Hz • Rated output: 12V DC, 20A • Minimum start voltage: 2.0V • The 7 stages are: Desulphation ; Soft Start; Bulk; Absorption; Battery Test; Recondition and Float. • Battery range: 60AH – 400Ah • Thermal protect (fan on): 65’C+/-5’C • Cooling fan: Automatic temperature controlled. • Efficiency: App. 85%. • Compliant standards: CB,CE, IEC60335, EN61000, EN55014 • Dimension (L×W×H): 215×115×62mm • Weight: 1.3kg

1. Desulphation The Desulphation stage may break down sulphation that occurs in batteries that have been left flat for extended periods of time, returning them back to full charge. sulphation occurs when lead-sulphate hardens and clogs up the battery cells. 2. Soft Start A preliminary charge processes that gently introduces power to the battery. This protects the battery and increases battery life. 3. Bulk (Constant Current) Bulk mode charges the battery at the maximum rate (constant current) putting a large amount of power into the battery in a short amount of time. This stage will charge the battery to approximately 80%, until the voltage reaches 14.4 volts for 12V charger 4. Absorption (Constant Voltage) The charge rate slows down so the battery can absorb more power and reach 100% charge. The voltage remains at a constant 14.4 volts for 12V charger while the current is gradually reduced until no more power can be added without over-charging the battery. 5. Battery Test An automatic battery test is conducted immediately after the absorption stage. The test monitors the voltage for 90 seconds to determine if the charge was successful. 6. Recondition The battery reconditioning function is initiated automatically in the case that the battery fails the battery test (stage 5). Failing the battery test indicates that the absorption stage was unable to fully charge the battery. The recondition mode will then begin to introduce a low constant current for a period of 4 hours. Then the charger will go into float charging mode. 7. Float The Float stage maintains the battery at 100% charge without overcharging or damaging the battery. This means the charger can be left connected to the battery indefinitely.

• Cooling fan: Automatic temperature controlled.

Output short-circuit protection.

Reverse connection protection.

Correct connect for the battery, and charger works well.

AC cable length: 1.1m, DC cable length: 1.2m, Hi-Quality alligator clip.


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of ElectricRCToys (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

20 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
31 Mar 2018 02:19

goods is good

verifed buyer
11 Mar 2018 06:26

good goods. the accumulators зарядил 4-летний to 100%. неполучалось зарябными other devices to 100% fully charge.

verifed buyer
3 Mar 2018 06:59

all ok

verifed buyer
1 Mar 2018 08:10


verifed buyer
28 Feb 2018 03:39

excellent power, лёгенький small, is qualitative, performs its functions. hope прослужит long.

verifed buyer
29 Jan 2018 13:23


verifed buyer
16 Jan 2018 09:39

Product as descripted. Works very well. I use it for my 235 Ah batteries. Good quality and fast delivery. I can recommend this store.

verifed buyer
11 Jan 2018 08:02

for two weeks fast edge краснодарский came in package whole all good packing and work all normal output no-load voltage tester while checked feedback by think everything will be ok 5 and trust store ставлю

verifed buyer
3 Jan 2018 09:17

work fine

verifed buyer
29 Dec 2017 06:45

seams that it is good quality. the package was well protected and that was good because the swedish post (postnord) don't respect other people's belongings. big hole, if you can as on the picture. 99% postnord certain that it is.

verifed buyer
27 Dec 2017 17:29

Fast post .. Thanks

verifed buyer
14 Dec 2017 22:42

Good: 1. Sturdy, reliable packing (otherwise the goods would arrive damaged for sure). 2. The device has a compact metal case, easy to carry around if needed. 3. Fully automatic. 4. Maximum charging current is 20A. 5. Looks nice. 6. Seller promptly replies to questions. Not good: 1. Very important: No possibility to adjust charging current. You can't buy a powerful device and use it to charge small batteries. It is very wrong, because nobody wants to buy 3 separate devices to charge motorcycle, small car, and truck batteries. Normally you just buy the most powerful device with adjustable output and use it for all batteries. It is recommended to charge the batteries with currents around 0.1 of capacity (can be 0.2 or so). This device provides 20A of current during the “Bulk” stage, so you can somewhat safely charge 100Ah batteries and higher, not 60Ah or God forbid 45Ah, and don't even think about motorcycle and UPS batteries. 2. No possibility to manually select “Desulfation”.

verifed buyer
13 Dec 2017 18:42

excellent charging. on gel разряженный fully 230а/зарядил in about 22 hours.

verifed buyer
2 Dec 2017 02:39

super!!! it is very fast! works amazing!!!

verifed buyer
23 Nov 2017 00:23

Fast excellent

verifed buyer
22 Nov 2017 16:13

The goods had been received in good working condition it has been tested and is okay.

verifed buyer
9 Nov 2017 16:59

Ultra Fast Shipping,Very Cool Product, Hi Recomment. ThankYou.

verifed buyer
25 Oct 2017 20:52

looks perfect appearance, well assembled пробывал but not more in.

verifed buyer
25 Oct 2017 20:50

excellent came package packed 3 weeks for shop good quality is not yet пробывал outside

verifed buyer
25 Oct 2017 20:50

shipment was very fast, i am enjoying it.

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