POTEK 10/20/40 Amp Smart Battery Charger and Maintainer – Awesome Product

I foolishly left my radar detector plugged into the 12v power outlet. Some f150’s keep the power outlet active even when the key is off and there went the battery. I like the automated feature in that it selects a 2 amp slow charge to begin charging (my battery was really dead) and gradually increases to 6 and then 10 amps as the charge level builds. If you’re in a hurry, you can override the automatic function and start the charging level at 10 amps but that’s not good for the health of the battery. Note that this is not a jump starter; just a battery charger and maintainer. I hope not to need it too often but i’m glad i have it if i do.

I use this charger to maintain the gel battery in my garaged car, which is only occasionally driven. The two led light display (charging; maintaining charge) is easy to read. Charging takes approximately two hours and the battery is then automatically switched to maintaining charge. The charger is light, ruggedly built and ships in a double cardboard box. The cables for power and battery connection are long and more than adequate. The overall construction is excellent, functional, and i find the colors attractive. During charging, the case barely gets warm. I find this unit to be the ideal charger for my car’s battery. I recommend it without hesitation.

This is by far the ‘smartest’ battery charger that i’ve ever used or seen. I was a bit skeptical that a 6. 8 pound battery charger could actually put out 40 amps and as an electrical engineer curiosity got the best of me so i gave it the ‘acid test. ‘ i intentionally drained a big, new deep cycle battery for two days all the way down until it was dead using a very large 2-ohm load resistor drawing approximately 72 watts from the battery. Two days later i disconnected the load resistor from the very dead battery and connected the battery charger by placing a high quality digital amp meter in series with the battery and charger and a high-end fluke digital volt meter in parallel with the battery so that i could check the accuracy of the digital meter on the charger. At first, when i powered up the battery charger i was concerned because the charger displace zeroes scrolling across the digital display. My first thought was that the charger couldn’t handle the new battery being that dead. However, moments later the charger when into its stage-1 de-sulfating mode and then shortly after it went into it’s stage-2 soft start mode followed by stage 3 bulk charging mode. While in stage 3 the charger was reading 40. 2 amps and my amp meter that i placed in series with the charger and battery agreed exactly to what the charger said it was putting out.

Potek 2/6/10 amp smart battery charger and maintainer with 50-amp battery clipsin april 2017 i had a standard diehard gold 3-year auto battery in my pickup that lost charge from 6 weeks of sitting/disuse. The potek battery charger i chose worked absolutely perfectly. I have another smart charger but it is in storage right now. Brought the battery indoors. Hooked it up inside the home to red-positive, then black-negative, then plugged it in. It spent under a minute in the ‘reconditioning’ mode lamp, then began to charge. I used the ‘slowest’ trickle and it topped off the battery in about maybe 24 hours?. This unit spends the time necessary to get the battery to full charge which is good for the battery, but it can charge quicker, and can be unplugged and removed early if you simply have to go. It pays to wait it out, in the long run, patience with keep your battery in good condition. If you are going to use it in the same manner as i did, i would recommend it.

Update 2018-09-07 – i contacted the seller and they immediately shipped me a new charger which arrived in a few days. I have only had the chance to try charging 1 battery so far, a 12v deep cycle marine battery, and it charged it just fine starting at 10 amps and working it’s way down, and then stopped when done displaying full. I will try a motorcycle battery this weekend. Hopefully this charger will continue to work as i love the size/portability of it. Certainly very impressed with the sellers responsiveness. The charger is not shutting off when battery hits peak voltage. I bought this on vacation and used it once around 7/19 to charge a good jetski battery at 2 amps to top it off. The next morning the charger was still running at 2 amps and battery was very hot. I tried it for the second time today on a good 12v deep cycle at 10 amps. Once again i found it still charging the battery this morning at 10 amps and the battery was boiling.

Received the 2/6/10 charger promptly. Tried it out and it seemed to work flawlessly. Web site said 2 year warranty, the booklet with it said 1 year warranty, in the questions answered, it said 18 months. . Tried to call them for answers, no one answered the phone. Does it have a warranty, if so what is it??. I don’t seem to have any problem with the product thankfully.

  • Best 12V Charger I’ve Ever Had
  • Potek 2/6/10 Amp Smart Battery Charger and Maintainer with 50-Amp Battery Clips
  • Great chargerSkeptical at first, but that went away quickly!!

Used it same day as i received it. Yard tractor battery was dead. After reading instruction booklet. I connected charger to my tractor for about 3 hours on #2 setting as suggested. Disconnected charger and my tractor started right up. Can not get any better than that. I am an 80 year old and love the compact size an small weight of my potek.

I bought this to charge a couple deep cycle trolling batteries. It does the job but has two annoying features-first as others have noted it takes a long time to top off the battery (at least my large deep cycle batteries). Hangs there at 80-90% for hours. I thought maybe it was the battery so i took it home and put it on my other fast charger and there was no problem and the charge cycle completed much faster. However my home smart charger also cost more than 2x the poltec. The second annoyance is the rather noisy cooling fan is tied to amperage output (3 amps i think) so when you hit that point of the charge taper the fan will shut off,. At various short intervals as the output/battery charge % fluctuates slightly above an below the fan switch point.

High quality and does what it claims. This is the best charger i’ve had out of about a dozen in the past 45 years. For example, i tried charging two u1 deep cycle batteries in parallel. One of my other chargers tried until it burnt itself out, and another tried until it boiled the water out and almost ruined the batteries, but this charger immediately knew not to even try. In between i learned that these batteries are too small to charge while hooked in parallel, but it was nice to see the charger also recognized this. The batteries, once recharged with this charger, last longer before needing another charge. Additionally, for the last 2 years my 2 chargers have been used daily for 8 hours or more and they’re still going strong. The only feature i’d like them to have is to recharge a fully depleted battery, but i have a stanley charger that’ll do that.

I bought this charger because the specifications are listed on the product page. Other competitive chargers did not do this, which may be revealing. If a charger’s voltage is not well controlled, it can stress the battery and eventually damage it reducing battery life. In particular, the float voltage must not be too high if the battery is to be left unattended. I tested the bulk charging (maximum) voltage and the float voltage while charging a riding mower battery. Both were within the listed specifications, which are proper voltages for 12 volt battery charging. Unlike some other battery chargers, this one does not need a voltage selection step before the charger activates. This means if the ac power is turned off, the battery charger will resume charging without intervention with the restoration of power. Some other competitive 6-12 volt chargers require the voltage to be set before the battery will operate. If ac power is lost, even briefly, the charger will not operate until the desired voltage is manually chosen.

Used this charger the same day it was delivered. My car battery was dead, i unpacked the charger and immediately was alarmed at the plastic housing. I am used to the older chargers with metal housings, and figured this was cheap. After reading the instructions i hooked the charger up to the battery while it was still installed in the car. I then plugged in to power and this little thing went to work. I used the optimal setting versus manually over riding the selection to the amps of my choice. After a few seconds this charger made its choice and began. I toggled through the display to see what voltage was being put out versus what the battery capacity stated. This charger adjusted the output while constantly monitoring capacity. Once it hit 90 percent, the charger slowed down to a trickle until the battery was topped off.

Features of Potek 10/20/40 Amp Smart Battery Charger and Maintainer with 50-Amp Battery Clips

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  • 10/20/40 Amp Smart Charger: suitable for all types of 12V lead acid batteries,including Gel and AGM.Everything from the capabilities to the safety features to the exterior outlook of this smart charger was designed with the consumer in mind.
  • Optimal function: Despite choosing three charging rate manually,the optimal fuction can automatically select the charge rate best fit for your type of battery
  • Digital display & 7- stage battery charging:Keep track of voltage,current and charging progression &high-efficiency charging process,you can be assured that your battery will be charged safely and efficiently.
  • Safety features:Automatic enter floating mode,external short circuit protection,battery over voltage/over heat protection and reverse polarity indicator to protect the user from harm and the charger from damage
  • What You Get: Potek 10/20/40 Amp Smart Charger, user manual, our 18-month warranty and friendly customer service.

Make sure this fits
by entering your model number.

Very practical design with very smart with very useful features, but why am i getting a blinking light?. And no charging?i’m reading i have to charge first with jumper cables from another first – what kind of nonsense is that?that said the reconditioner feature seemed to bring an older battery back from the dead (acording to my mechanic’s load tester)i really want to give this a better rating but how can it not charge a dead battery?is there an online users manual?.

This device should be in every garage. I usually have to replace my car battery every 2 years. Finally a tech ask me, ‘how often to you charge your battery’?. Doesn’t the alternate do that, i asked?. Not enough he said, especially not during short drives. Use the charger every 6 months, and your battery will last at least 4 times longer. After he showed me a 10 year old battery in his 99 nissan pick up that passed load test etc, i was convinced. I’ll never be without a charger again.

After 13 months of flawless operation, my potek battery charger gave up the ghost. I found the receipt, noted that the device came with a 2-year warranty, and braced myself for an arduous process of shipping, waiting for evaluation, waiting for repair, waiting for return shipping, etc. I attached to my first email to them a copy of my receipt. The next day i received shipping notification and had a brand new charger in a few days, and it’s working great. You can bet i’ll buy from you again and will tell all my friends to as well.

I don’t spend a lot of time working with batt. But i have to say that from the moment i unbox the charger,, i was impressed. Well not everyone loves reading fine print. So i hooked it up to the car batt. And left it running all night. Well i have to say i am very pleased with my purchase.

10/20/40 Amp Smart Charger: suitable for all types of 12V lead acid batteries,including Gel and AGM.Everything from the capabilities to the safety features to the exterior outlook of this smart charger was designed with the consumer in mind.

Optimal function: Despite choosing three charging rate manually,the optimal fuction can automatically select the charge rate best fit for your type of battery

Digital display & 7-

Safety features:Automatic enter floating mode,external short circuit protection,battery over voltage/over heat protection and reverse polarity indicator to protect the user from harm and the charger from damage

Summary
Review Date
Reviewed Item
Potek 10/20/40 Amp Smart Battery Charger and Maintainer with 50-Amp Battery Clips
Rating
4 of 5 stars, based on 306 reviews