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Best Car Battery Charger

Best Car Battery Charger

Best Car Battery Charger

I currently have a 24V set-up in my bass boat for the trolling motor. I upgraded to Optima Blue top batteries a few months ago. I installed a new 3-bank, 10amp DualPro charger the same day I installed the new batteries. I fully charged the batteries before using the boat. About two weeks later we fished a 3-day tournament and promptly wore out two new, fully charged Optima batteries in 7-8 hours of fishing each day. Yes, I charged them all night before the first fishing day. My partner lays on the trolling motor well more than I do: however, killing the batteries wasn‘t really the issue. Well, other than listening to him gripe about it and how HIS Skeeter‘s 36V TM system lasts all day and THEN SOME. Anyway – I plugged in between 4pm-6pm on day #1 day (at our lodging on normal electricity) to charge the batteries. By 5am THE NEXT MORNING…the batteries were STILL NOT FULLY CHARGED. Same thing happened on morning #2 and #3. The starting battery was was obviously fully charged each day; however, depending on the TM battery, one may have been about 90% charged; the other in it‘s final stage (like 98%). The next day one TM battery was like 80% and the other 90%…after 12 hours on the juice. Brand new batteries on a brand new charger. I don‘t get it!! Optima “recommends” using 10A chargers on their blue top batteries (if not all their batteries). I‘m considering moving to a 36V trolling motor. Here‘s my question. I‘m going to have to upgrade to a 4-bank charger to do this. I don‘t want to trash two Optima batteries that I just bought. I also don‘t want to wait 12-hours to have fully charged batteries. The charger I want to go to chargers at 30A, and I don‘t think it has a regulator (Protournament 300 Quad). That said, will 30A charger HURT the Optima batteries? 10A is going to take 10-12 hours to recharge a depleted trolling motor battery…no biggie for non-tournament fishing…but when you need the boat ready to go 12 hours after you get out of it…12 hours to charge two 12V batteries ain‘t cutting it. Had I known it was going to take 12-hours to get a full charge I wouldn‘t have bought the Optima batteries. To hear my partner tell it, his Odyessy batteries are FAR SUPERIOR to Optima anyway.
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Best Car Battery Charger

We don’t mean physical size, but how many amp hours your battery stores. For example, a typical full-size auto battery is about 50 amp hours, so you would choose a 10 amp charger that would take about 6 hours to recharge it if the battery were completely dead. Another instance would be a marine deep cycle battery rated at 100 amp hours. It would take a 10 amp charger about 11 hours to recharge a dead battery to near 100% full charge. To calculate your total charge time, a good rule of thumb is to take the amp hour rating of the battery and divide by the charger rating (amps) and then add about 10% for the extra time to totally top off the battery.
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Best Car Battery Charger

After 20 years with a charger that had a small needle gauge that was non-informational, this die-hard charger is like a star-wars gaget. I have a 69 Mustang, a 71 Alfa Romeo Spyder, a 73 Cougar, and two family cars. Batteries are constantly in need of attention to keep them in top form. The fast 20amp charge gets things moving, when 100% the charger switches to maintain. Switch to 2amp to bring it up to a true 100%. It took 20 hours to go from 0 to 100 on my Alfa battery. I can now see which batteries are draining faster and need closer attention. Start mode can get the car started, follow the instructions. Alternator check showed the Cougar needed help, re-built alternator was the fix. The Mustang shows 85% after weeks sitting, now i know thats normal and needs just a small topping up. Easy carry handle, all wires neatly tucked in back make this charger a pleasure to store and use. Its a great charger, if it can last 5 to 10 years i'll call it an excellent charger.
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Best Car Battery Charger

We recommend contacting the manufacturer regarding your charger. Your battery should not be hot to the touch, so the charger could be malfunctioning, or the charger is attempting to charger a battery that cannot accept a full charger and is not timing out.
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Best Car Battery Charger

Battery is fully charged and ready to use, indicated by the 100% CHARGE LED being a solid Green. In this step, the battery charger will only deliver enough current to keep the battery full. If the battery tells the charger that more current is needed, the battery charger will switch to Maintenance.
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Best Car Battery Charger

Hello. I have a basic folding camper. The units were never factory fitted with electrics let alone a charging system. Which may well be a good thing as the most popular UK charging units fitted to caravans, campers and trailer tents only charges at 13.6V. So not only does it take an age to charge it never fully charges. My choice previously has just been to use a “dumb” charger. You sell intelligent chargers, now until recently I‘d never seen intelligent chargers with high single digit AH rates let alone double digit AH rates. Now I may well use a low rated intelligent charger to keep my battery conditioned when at home but what about on site? If I‘m on an EHU (Electric Hook Up not sure American term) I‘m not charging and running the battery in separate cycles. A whole range appliances may be plugged in whilst charging the battery. Does the use of appliances confuse the charger? How does it asses the battery if at the same time resistive loads, inductive loads or both are being taken out. The batteries used tend to be 80AH or 100AH “pseudo” leisure batteries. I say pseudo leisure batteries because there is some debate in the UK on how much thicker the plates are on these starter sized batteries as against the full thickness in 2V cells. Simple lead acid batteries or glass mat are generally used. The demands light (ish) lighting, audio, limited TV, water pump. To be honest as demand is low and temp reasonable battery life is quite good. More a case of being curious how intelligent chargers work if you‘re taking load at the same time? Thanks In Anticipation.
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Best Car Battery Charger

So far, this battery charger is one of the best that I have owned and I have had quite a few. Right away, I charged all of my boat batteries, which two were Deep Cycle and one was for the engine and it did very well. Then I charged two more Deep Cycles in my RV and the standard battery for the engine. No problems so far. I really like the carry handle and the size is about what I expected for a 20 amp charger. I have not tried the 80 amp start function, but I am sure that it works well on smaller batteries for motorcycles or maybe a half charged car battery. I highly recommend this battery charger and the price is great also.
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So, which is the best car battery charger? And how can you know? We've compiled all of the information you need on this page and in our car battery charger reviews. If you are interested in learning more than what's on this page, check out our other articles on car battery chargers. You can also check out our individual car battery reviews. Without further ado, let's dig into the details.
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See Why CTEK is a Smarter Battery Charger Using a unique charge algorithm, CTEK Smarter Battery Chargers go through 8 steps to constantly read and communicate with your battery, charging only to its direct needs and therefore avoiding any possibility of incorrectly charging the battery. Furthermore, by ensuring the battery is conditioned as well as charged, your batteries last significantly longer. Moreover, each CTEK Smart Battery Charger regulates mains voltage to protect any sensitive electrical and hi-fi equipment. Now that’s smart! See the visual demo of CTEK’s world renowned 8-step charging process. See visual demo of the 8-step smarter charging process
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The Mini-Pro auto battery charger from KeyLine does more than just bring dead batteries back to life. This 5 stage battery charger fully charges, maintains and conditions lead/acid, sealed, gel cell and AGM batteries so that they perform at their very best and last up to four times longer. This 75 amp, 12-volt charger even includes a desulfation stage which conditions your battery, meaning that it will charge deeper and for longer, prolonging battery life and making flats less frequent.
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I’m planning to purchase a 12v 35amp hour AGM battery for use with a cpap machine while camping. We have also selected a 400w continuous use/800w peak power inverter to use. I’m having a hard time knowing what type of charger to purchase, as I’m on a tight budget. I know you have higher quality chargers listed, which is great, but I don’t know what type of charger I can use at all. A lot of the reviews mention float chargers, which works for storage – but I need something that will ensure the machine is able to run at night, and can be charged via wall socket during the day. Would a 2/6amp, 6/12v manual charger with self-resetting circuit breaker and an automatic trickle charger after the battery is full work for this?

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