We will see. I think this old Gel cell is toast. But I wanted a charger for AGM (absorbed glass mat) so I got this one. You can check it out on amazon at the link below.
It is a Schumacher SSC-1500A-CA Ship ‘N’ Shore 15 Amp SpeedCharge Charger with Battery Clamps.
my charger broke, i fixed it. but i only fixed it back to the bad design it originally had.
music: jersey devil for PS1
In this short video I demonstrate how to connect a battery charger. The important thing here is to ensure you are connecting it up to the right terminal. If you get this wrong you could damage the battery and the charger. Enjoy 🙂
Battery charger specification
MAYPOLE MP7423 INTELLEGENT BATTERY CHARGER 6V/12V 4A
•Suitable for use with 6V & 12V lead-acid and 12V AGM batteries of 1.2Ah to 120Ah.
•Input : 230V AC 50Hz 0.6A
•Outputs: 6V: 4A DC 12V:4A DC
•Automatic detection of battery voltage & condition
•Automatic charging current selection
•4 charging modes : 12V Standard, AGM & Winter; 6V Standard
•5 step charging including recovery & maintenance cycles
•Memory function automatically re-starts charging if interrupted
•LCD display with battery level indicator & dual colour backlight
•Interchangeable 1.5m battery clip & ring terminal connector leads included
•Overload, reverse-polarity and short circuit protection
•Manufactured to European electrical safety standards
•Suitable for low maintenance and maintenance-free batteries
•Not recommended for use with GEL batteries
Overview of a simple easy basic homebrew Gel Cell (12Volt DC) charger scratched together in about an hour. Only 9 small parts & costs about a buck ($1.00). Includes current limiting & float charge state. You’ll still need an enclosure of some type and a 15 – 18 Volt DC supply at 1.0 Amp (heavy duty wall-wart or bench type supply). Works on batteries up to 20 Ah. Great for PC type UPS 12V Gel Cell batteries.
Link to product website
Here is where you can buy one
This is my review of the Solar Pro Logix PL2320 6v/12v automatic battery charger and maintainer.
AGM and gel cell batteries should not be charged with regular battery chargers. Most standard battery chargers will not even start if a battery is completely dead or deeply discharged. I have restored batteries that were completely dead for over 5 years by using different techniques. Never use tap water or any other water in a battery except distilled water. Always use eye protection when handling batteries.
The OPTIMA Digital 1200 12-volt battery charger and maintainer was designed to enhance the performance and lifespan of OPTIMA batteries, as well as all other flooded and AGM lead-acid batteries. This video explains some of the unique features and functions of this product.
For more battery related tips go to http://www.optimabatteries.com/en-us/
Please read! YouTube user Ciprianwiner wanted to know more about what I use to charge my sealed lead acid battery, so here it is.
The charger is a Numax 1 amp 12v sealed lead acid battery charger. I paid around £20 for it from a local battery specialist (Manbat) where as it would usually cost £35 on-line.
I am not saying that you never charge a sealed lead acid type with a car battery charger but I would advise being careful or using some sort of current limiting as once you have a gassing sealed battery from too much charging current its pretty much downhill from there in terms of capacity.
Usually you can find datasheets online from the battery manufacturers website with all of the charging specs for your specific battery.
Also it is common to see the battery’s voltage read well into the 13v range when it is taken off charge (I have even seen as high as 13.6v stay for a while!). But once you put a load on them it will come back down.
Quite a dull and boring video really!
Check out my video overview of 2 Diehard Vehicle Battery Chargers. This video shows how to use them and all the features.
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What’s the best charger for an Optima SpiralCell AGM battery? What’s the best method for recharging a battery? Find out in this informative video from Optima Batteries.
You’ve learned that with minor adjustments, you can keep your vehicle running smoothly. A tweak here, a new tip there, and you’ll be able to get a little more from your ride.
Here are a few tips for keeping your lead acid battery performing at its peak. There are also a couple of things to keep in mind when maintaining your Absorbent Glass-Mat (AGM) battery, including OPTIMA batteries.
Newer chargers keeping up with battery technology. Many newer battery chargers, or Smart Chargers, have microprocessors that collect information from the battery and adjust the current and voltage accordingly. Some have different settings for charging wet cell (flooded), gel and AGM batteries.
Battery performance limiter: sulfation. All lead acid batteries can experience sulfation—the formation of lead sulfate crystals upon discharge. Look for a charger with a de-sulfation mode to help condition your battery and keep it performing at its best.
Low and slow is best. A low amp charger (1 to 10 amps) is always the best choice for charging any lead acid battery. It’s quicker to charge at higher amperage, but it also generates a lot of heat, which reduces the life of a battery, just like the raging heat of summer.
Alternators are NOT chargers. Don’t rely on your alternator to do the work of a charger.
An alternator is meant to maintain a battery, not charge it.
Batteries eventually die. Batteries are a consumable product. No battery will last forever. The goal is to consistently maintain your battery to get the most life out of it. Charging Considerations for AGM Batteries
Different chargers. Different capabilities. Although under normal conditions, most 12-volt automatic battery chargers will work on an AGM battery, the battery will only be charged to about 80 percent of its full capacity. Many newer battery chargers have settings specifically for AGM batteries; some even have separate settings for OPTIMA RedTop® and YellowTop® batteries.
AGM and gel technology differ. Remember that the technology of an AGM battery is not the same as a gel battery, which has its own charging requirements. If your charger offers different modes, select the correct one for your battery. If you use the gel setting to charge an AGM battery it won’t fully charge and, over time, it will actually damage your AGM battery.
No problem charging an AGM at 10.5 volts or greater. Under normal starting conditions, an OPTIMA battery should never experience “at-rest” voltages below 12 volts. Most 12-volt chargers and alternators have no problem recharging an OPTIMA if it has an “at-rest” voltage of 10.5 volts or greater.
The magic threshold 10.5 volts. The charging scenario for a deeply discharged AGM battery, one that’s dipped below 10.5 volts, is slightly different. Tips for recovering a deeply discharged AGM battery can be found in OPTIMA’s tech tip, How to Resuscitate a Deeply Discharged AGM Battery.
Chargers we like. OPTIMA hasn’t tested every battery charger on the market, but there are a few battery chargers/maintainers that we’ve tried and like. Some of these units have the additional capability of doubling as a battery “maintainer” for stored vehicles. Some come with additional wiring to permanently attach leads from your battery to an accessible location on your vehicle for easier hook up. You can contact OPTIMA Batteries Customer Service at
888-8-OPTIMA (888-867-8462) or via email at firstname.lastname@example.org for charger recommendations based on different applications.