MADE IN THE USA!Product Specifications for Associated 9640 12V 40 Amp Bench Charger, Analyzer & Power Supply
| BM Part #: | ACC-9640 |
|---|---|
| Made In: | U.S.A. |
| Voltage: | 12 Volt |
| Charging Rate: | 40 Amp |
| Length: | 17" |
| Width: | 16" |
| Height: | 17" |
| Shipping Weight: | 38.00Lbs |
| Warranty: | 1 Year |
| Product Manual: | Download |
- Made in the USA. Why it matters:
- Superior craftsmanship; rigorously tested; high-quality parts.
- 40 Amp Automatic Charging: Fully charges 12V batteries fast, then stops overcharging automatically.
- 130 Amp Crank Assist: Gives a weak battery the boost it needs to start your vehicle.
- Dead Battery Override: Jump-starts charging on batteries too low for the charger to detect.
- Multi-Chemistry Compatibility: Safely charges flooded, AGM, Gel Cell, and Optima batteries with one switch.
- Reflash Power Supply Mode: Delivers steady voltage so vehicle reprogramming won't get interrupted.
- Built-In Battery Diagnostics: Flags weak or failing batteries before they strand you unexpectedly.
Product Description
Is your shop cycling through weak batteries and unreliable jump-starts? The Associated 9640 is a 12V 40 Amp bench charger, battery analyzer, and power supply built to handle whatever comes across your workbench. Whether you're topping off a flooded battery, reviving a stubborn AGM, or keeping voltage steady during an ECU reflash, this Intellamatic charger switches gears with you. It's made in the USA, built for daily shop use, and backed by diagnostics that catch a failing battery before it fails you.
Handles Every 12V Battery Chemistry
Not every charger plays nice with AGM or Gel Cell batteries. The 9640 does, with a simple selector switch for Sealed, Flooded, or ESS Flash mode. That means one charger covers flooded, AGM, Gel Cell, Spiral Cell, Orbital, and Optima batteries, so you're not juggling three different units for three different jobs.
A Power Supply When You Need Steady Voltage
Reflashing an ECU or running an extended diagnostic scan pulls a lot of current. Disconnect the battery mid-job and you risk losing settings, or worse. Switch the 9640 to ESS Flash mode and it holds a stable 13.7V output at up to 45 Amps, so the vehicle stays powered through the whole procedure.
Diagnostics That Catch Trouble Early
A battery that looks fine can still be on its way out. The 9640's built-in diagnostics flag weak or defective batteries before they leave a customer stranded in a parking lot. Pair that with the Dead Battery Override switch, and you can even jump a battery too depleted for the charger to detect on its own.
For a shop charger that keeps up with flooded, AGM, and Gel Cell batteries, doubles as a power supply, and helps you catch weak batteries before they become comebacks, the Associated 9640 earns its spot on the bench. Add it to your cart and keep every 12V battery job moving.
Frequently Asked Questions
What types of batteries can the Associated 9640 charge?
A: It's built for 12V flooded, AGM, and Gel Cell batteries, including Spiral Cell, Orbital, and Optima batteries. Just set the selector switch to match your battery type before you start.
Can the 9640 power my vehicle during an ECU reflash or reprogram?
A: Yes. Switch it to ESS Flash mode and it acts as a stable 13.7V, 45 Amp power supply, so voltage won't drop mid-procedure the way it can with the battery alone.
What does the Dead Battery Override switch do?
A: Some batteries are so depleted the charger can't detect them to start charging automatically. The override switch forces a charge to begin, then the automatic charging takes over once voltage recovers.
Which switch setting should I use: Sealed, Flooded, or ESS Flash?
A: Use Sealed for AGM and Gel Cell batteries, Flooded for standard flooded batteries, and ESS Flash only when you need a steady power supply for reprogramming or extended service work.
Will the 9640 overcharge my battery if I leave it connected?
A: No. Once the battery reaches full charge, the 9640 automatically stops and switches to maintenance mode, so it's safe to leave connected on the bench.
