" indicate the difficulty level for installing the product.• Charger automatically switches to Float Mode when fully charged
• Absolutely no danger of overheating or overcharging
• Leave it connected for months at a time if necessary
• Designed to charge AGM, sealed maintenance free, lead calcium and flooded batteries
• 4-step charging (Initialization, bulk charge, absorption mode, float/maintenance)
• Spark proof
• Temperature compensated
• Short circuit and reverse polarity protected
• 10-year manufacturer's warranty
• Pictured cables included
Increase battery life by up to 5 times!
* Connect it and leave - safetly charges and maintains battery indefinitely.
* Properly charges all lead-acid batteries: Standard, AGM and Gel types
* Maimum 2.5A charge rate (5.0A effective)
* Microprocessor controls constantly evaluate battery and deliver appropriate charge
* Exclusive Pulse Technology removes sulfation to extend battery life - even when connected to a motorcycle/vehicle
* User interface features 12 L.E.D. status indicators
* Weatherproof design
* High impact plastic housing with rubberized base
* Included is one bolt-on cable leads and one cable with clip leads
5 year manufacturer's warranty
Double the Charging Capability! Double the versatility!
Same 5-stage patented pulse charging technology as Xtreme Charge - can add years to your battery life!!
Independently monitors, charges AND MAINTAINS two batteries simultaneously. Not just a trickle charger - monitors battery to prevent plate degregation that shortens battery life. One of the best, most cost effective chargers that uses modern technology to fully maintain your battery and extend it's life.
* 2 fully independent internal power supplies
* Input: 100-250C AC
* maximum charge per channel 2.5A (5.0 effective) - not the 800ma - 1.25amp charge amperage found on most other chargers
* maximum power: 37 watts per channel
* functional output cable length is 8 ft per channel - can use 25 ft extension on each channel.
* CUL listed
* Weatherproof rubberized base
* Includes: 2 ea. quick disconnect eyelet lug leads and 2 ea. quick disconnect clamp leads
* 5 year manufacturer's warranty
* Outperforms any wall plug charger
* Fully charges battery automatically
* Maintains full charge indefinitely
* Spark-proof and reverse polarity protected
* Up to 16 volts for recovery of sulfated batteries
3 year manufacturer's warranty
• 12V - 1.25A per channel
• 4-step microprocessor controlled
• Fully automatic charging program
• Spark proof
• Temperature compensated
• 72 hour safety timer
• 2-year manufacturer's warranty
• Pictured cables included
• Holds Battery Tender Jr., Battery Tender Plus or Battery Tender Waterproof
• Keeps unit and accessories together in 1 place
• Protects units from dust and dirt
Through years of advanced research in battery electronics and electrochemistry, CTEK has developed battery chargers with superior technology that save time, money and aggravation by maximizing battery life and performance.
All CTEK chargers feature
Simplicity
• Less charging time than conventional chargers• provides current pulses to maintain fully charged batteries
• No need to disconnect battery from vehicle
Flexibility
• Fits virtually all lead-acid battery types: Wet, Sealed, Gel & AGM
• Splashproof and weatherproof• Sealed design is approved for outdoor use
• Compact, lightweight, and easily portable
• Impossible to connect incorrectly
• Patented technology protects against sparks, short circuits and reverse polarity
• Does not damage sensitive electronics
CTEK US 800
• Easily charges all small batteries and is an excellent maintenance charger for seasonal vehicles with batteries up to 100 Ah.
• Recovers or•wakes a sulfated or under-charged battery
• Begins charging at 0.8A
• Sends out current pulses for charge maintenance, will not over-charge
• Ideal uses: Motorcycles, ATVs, personal watercraft, snowmobiles (Also works well for maintenance charging in automotive applications)
CTEK MULTI US 3300
• Strong multi-tasker that can handle all but the largest vehicles
• Recovers or•wakes a sulfated or under-charged battery
• Three changing modes 0.8A@ 14.4V,3.3A@14.4V, and 3.3A@14.7V
• Unique cold temperature mode enables faster re-charging, even in the coldest winter conditions.
• Charges all types of lead-acid batteries(wet, sealed, AGM).
• Specifically recommended for Optima Red Top batteries.
• Ideal uses: All CTEK US 800 applications plus boats, campers, and trucks
OptiMate 4: The new benchmark – A truly unique diagnostic battery optimizer for 12V lead-acid batteries (sealed maintenance-free, gel, or filler caps) up to 50Ah. Like all OptiMate models before it, the microprocessor controlled OptiMate 4 can save neglected batteries, but the OptiMate 4 is even more effective, with a new dual-stage RECOVERY + TURBO RECOVERY desulfating action. For neglected deep-discharged batteries the RECOVERY mode engages automatically, while the TURBO RECOVERY mode engages for more severely neglected batteries **. Like all other OptiMates, the OptiMate 4 then charges the battery, verifies that the battery is as fully charged as its basic state of health allows, and then checks for & detects dead battery cells.
But, the most important attribute of the OptiMate 4, as with all OptiMates, is the safe, optimal maintenance of your battery during long term storage, achieved by its gentle maintenance cycle which automatically allows the battery to rest for 30 minutes of each hour of the maintenance cycle while it remains connected.
The automatic multi stage program engages as soon as the OptiMate is connected to a 12V battery that has at least 2V :
1. The OptiMate 4 immediately checks if the battery has enough voltage to start the program, and whether the battery is deep-discharged ("sulfated") or not.
2. For neglected batteries, the OptiMate 4 starts the recovery mode, initially limiting the applied voltage at 16V, and if necessary for sulfated batteries, engaging TURBO recovery at a voltage of up to 22V** at low current for up to 2 hours, to recover the battery to a condition in which it can accept a normal charge.
3. As soon as the circuit detects that this point has been reached (immediately for most batteries), the “bulk charge” mode engages and delivers current at a constant rate of 0,8A to charge the battery.
4. When the battery-sensing circuit observes that charge progress is sufficient, the unique ‘verification’ stage engages. The voltage is limited at a lower level, & if sensed necessary, a voltage pulsing action provides further desulfating & tops off the charge. When this has been verified, or if after 48 hours from connection the battery has been unable to accept & retain adequate charge, the next stage engages.
5. The OptiMate then stops current to the battery for 30 minutes while it monitors the unsupported battery voltage to check whether the battery can retain sufficient charge to crank an engine, before the long term maintenance and test cycle begins.
6. During the next 30 minutes the OptiMate offers the battery a supporting & maintaining charge, but only to the extent necessary to counter any losses or connected loads such as an electronic alarm or immobilizer. Overcharging and/or overheating of the battery is ruled out by this 50% duty cycle as the battery is interactively maintained for 30 minutes and then rests during the power drain tests of each alternative 30 minutes. So the battery is always 100% good to go, but never overcharged.
**The OptiMate’s high voltage desulfation mode cannot engage unless the battery is first disconnected from the vehicle’s electrical system. However, even if the battery is not disconnected, the OptiMate cannot damage sensitive vehicle electronics as the higher voltage mode can only engage if minimal or zero current is flowing into the battery.
* Meets all relevant UL & CSA standards.
* Comprehensive selection of SAE connection accessories including an output extension set.
* 2 year limited warranty.