Charge-O-Matic - The Timer That Makes Any Charger Smart. Power on for up to 99 Hours, Cycle Off for up to 99 Days, Repeats indefinitely! 30 Day Timer. 60 Day Timer. 90 Day Timer. ETL Certified.


Super easy to set it. Reliable so you can forget it. Plus, it's ETL certified for safety.

Say goodbye to prematurely destroyed and dead batteries that result from overcharging and undercharging.

How it works: Any charger (or device) that is plugged into Charge-O-Matic's outlet can be set to power-on for a user-defined period of 1 to 99 hours. After the user-defined power-on period has elapsed, Charge-O-Matic turns off the outlet (and thus the connected charger or device) for the user-defined power-off period of 1 to 99 days. Once the appropriate days of power-off period have elapsed, Charge-O-Matic repeats the power-on period and so on. By repeating this scheduled on and off routine, Charge-O-Matic keeps items ready and charged when you need them, without the battery damaging overcharge associated with leaving devices charging at all times.

1 to 1 front view

1 to 1 rear view

1 to 1 explication

Simple Dual Knob Design

No confusing menus or key sequences. We designed Charge-O-Matic to need no instruction manual (but we supply one just in case).

Safety Certified

Intertek ETL Certified and conforms to UL 60730-1:2016 Ed.5; UL 60730-2-7:2014 Ed.2+R:31Jul2014. Certified to CSA E60730-1 and E60730-2-7.

Reliability through Battery Backup

Power outages are no match. With its onboard battery backup, you can rest assured that Charge-O-Matic will resume doing its job reliably once power is restored, maintaining its settings and its place in its routine.

Generac XT8500efi generator

Electric Start Generators

To ensure they'll start when you need them to, most portable generators have a specific battery maintenance schedule. Generac, in their owner's manual for their XT8500EFI states that the battery should be, "Charged for 12 hours, every three months." With Charge-O-Matic, turn the hours knob to 12 hours, and the days knob to 90 days. Your generator battery maintenance schedule is done forever. Set it, forget it, and never pull a cord again.

Charge-O-Matic is the smart charger for your electric start generator.

Macbook laptop

Laptops & Notebooks

If you're a road warrior, you're using your notebook every day. For the rest of us, our laptops may see use only once in a while. According to Apple, if you're storing your computer for long term, "Do not fully charge or fully discharge your device’s battery — charge it to around 50%. If you store a device when its battery is fully discharged, the battery could fall into a deep discharge state, which renders it incapable of holding a charge. Conversely, if you store it fully charged for an extended period of time, the battery may lose some capacity, leading to shorter battery life. If you plan to store your device for longer than six months, charge it to 50% every six months."

Charge-O-Matic makes maintaining your laptop and notebook computer batteries easy and reliable. If your laptop charges to 50% in 4 hours, set the hours knob to 4, and the days knob to 90. Now your laptop battery will never be drained too low to permanently damage it. Set it and forget it.

Jackery Portable Power Station

Portable Power Stations

LiFePO4 powered portable power stations are amazingly useful, but expensive tools. Maintain your investment by following the manufacturer's maintenance recommendations. Jackery's website FAQ says, "1. We recommend keeping the battery power above 20% when using or storing the power station regularly.

2. A fully charged battery can last for several months. However, please recharge it every 3 months to keep the battery power above 50% if you don't use it."

EcoFlow's blog states, "For long-term storage, discharge the battery to 30% and charge it to 85% every three months (products that have not been charged and discharged for more than 6 months are not covered)."

Charge-O-Matic makes storing your portable power station to manufacturer specs easy and automatic. If your PPS takes 5 hours to charge to manufacturer spec, set Charge-O-Matic's hour knob to 5 and the days knob to 90 days. Your PPS maintenance routine is done. Forever.

portable jump starter

Jump Starter Boxes

If you've ever needed a jump start, but your jump start box was dead, you need Charge-O-Matic. Stanley recommends charging its units every 30 days. With Charge-O-Matic, turn the hours knob to 24 hours, and the days knob to 30 days. Your jump starter box maintenance schedule is done forever. Set it, forget it, and never be stranded again.




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