Charge-O-Matic TM
Charge-O-Matic TM - Smart Battery Charger Timer
Charge-O-Matic TM - Smart Battery Charger Timer
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What Charge-O-Matic™ Is (and Isn’t)
Charge-O-Matic™ is not a battery charger. It’s a patented smart timer that controls the charger you already own. It cycles power on/off automatically to keep batteries healthy without overcharging.
Compatibility: Your charger must begin charging when power is applied. If it needs a button press or mode selection at power-up, it is not compatible.
Patented, One-of-a-Kind Technology
Charge-O-Matic™ is the only product of its kind, backed by U.S. Patent 11,610,749. It delivers long-interval maintenance cycles no smart plug or basic timer can match.
Why Use a Battery Charger Timer Switch?
- Extend battery life: avoid constant trickle charging
- Automate maintenance: set hours ON / days OFF
- Multi-use: e-bikes, generators, jump starters, scooters, tools
- Multi-device: use a power strip if all share one schedule
Why Not Just Use a Smart Plug?
- True long OFF cycles: hours ON, then days/weeks OFF, repeat
- No Wi-Fi/app: simple dual-knob controls—set and forget
- Resumes after outages: backup memory continues the cycle
- ETL certified: purpose-built and safety tested
Smart Plug Myth vs. Charge-O-Matic Reality
Some smart plugs can do daily/weekly schedules. Long-term battery care requires running occasionally, then resting for weeks—not daily toggles.
- Smart plugs: clock-based daily/weekly, lose schedules on glitches
- Charge-O-Matic: set 1–99 hours ON and up to 99 days OFF
- Right intervals: 30 / 45 / 60 / 99-day rests for safe storage
Bottom line: Smart plugs are for lamps and kettles—Charge-O-Matic™ is engineered for batteries.
Automatic Battery Maintainer for Storage
Run your charger for a few hours, then rest for days. Repeat indefinitely for seasonal gear, stored vehicles, generators, and more.
- On Time: 1–99 hours
- Off Time: 1–99 days
- Standby draw: 0.4W
- Outage-proof: resumes where it left off
Charger Compatibility Examples (not exhaustive)
Works with chargers that auto-start on power:
- Trickle/float: Battery Tender Jr., Schumacher, NOCO (auto-start)
- Power tools: Milwaukee M18, DeWalt 20V, Makita LXT (plug-and-charge)
- Generator/RV: standard 12V maintainers for starter batteries
- E-bikes: Rad Power, Aventon, Lectric, Juiced auto-start chargers
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It does what it says very well. But you should communicate with the seller first if you have any questions of use. They are very helpful and explained in detail the timers cycles.
Puchased this to prevent potential battery overcharge of many devices that have poor chargers. While a great idea for a product, product execution could be better, and resulting usefulness may be limited (not the product's fault).First, the unit plugs directly into the wall (this is usually a bad product design decision to save $$). When used on a quad outlet (4 sockets), its so wide is blocks the adjacent socket, making that socket unusable. See pic. In these cases, consider a "cheater" cord - a flexible cord between it and the wall socket. They should include one as they can purchase these at bulk prices - I cannot.Second: While not the products fault - about one out of every three of my chargers were ineffective when using this device. This is because when the power is cut to poorly designed chargers, the charger itself will discharge the battery sitting in it. Thus, while the battery was fully charged when this unit when on, the battery's charger sucked all the power out of the battery when the device turned the power off. This left me with many dead batteries (when I needed it during an off cycle). Make sure you test your charger before buying this.How? Fully charge your battery using just the wall socket - then pull the plug and let the battery sit in the unpowered charger for a few days (maybe a a week). You will often find that when you use the battery, its either dead or diminished. In that case, this product will not help you.Be aware that your battery may be "self-discharging" internally if it is old. Test this by taking the charged battery out of its charger and letting it sit for a while, then testing it.
I am impressed. I had bought this for my aunt to charge her scooter then she sold it so I am now using it to run two chargers for batteries. Easy to set up, and works perfectly. Batteries no longer are getting constantly baked by the chargers.
just what i needed to my golf cart plugged in during the winter
This timer is wonderful.I use it for my Mobility Scooter. It is not good to leave the scooter on charge all the time.Batteries go bad. Now, I use this timer! I put charge time for a 14 hour charge, every 20 days.This works well when not in use. You can start a 14 hour charge, anytime you want to, if needed.