XS Power HF1208 IntelliCharger 3-stage charger for 12-volt batteries — 8-amp charge rate

Name: XS Power HF1208 IntelliCharger
Brand: XS Power
SKU: 122HF1208
Price: 129.99 USD
Availability: InStock
Rating: 5.0 (29 reviews)

Item # 122HF1208

Today's batteries demand precision charging.

This smart charger safely keeps your battery full of juice

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Only at Crutchfield

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XS Power HF1208 IntelliCharger This smart charger safely keeps your battery full of juice

XS Power HF1208 IntelliCharger Only at Crutchfield

Today's batteries demand precision charging.

Item # 122HF1208

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by Crutchfield's Dave Delamere

Modern charging for modern batteries

Today's batteries demand precision charging. XS Power's HF1208 Intellicharger uses microprocessor control to supervise the charging process and avoid overcharging which can damage batteries. The microprocessor controls a 3-stage charging process that safely and rapidly charges maintenance-free, deep cycle, gel-cell, and AGM (Absorbed Glass Mat) batteries. You'll enjoy maximum battery charge and battery life with the HF1208 Intellicharger.

Three-stage charging

The HF1208 Intellicharger uses three distinct charging stages. In the first stage, the current is fixed and the voltage is allowed to float – this stage restores 80% of the battery's capacity. Once the battery's cell voltage is up to the correct level, the second "absorption" stage engages, allowing the voltage to remain fixed while the current is allowed to float. The battery is brought to 100% during this stage and the cells are equalized. The third stage is “Float” charging, which reduces the voltage and current to a level that will maintain the battery indefinitely. Handy LED indicators show power on, charging, and fully charged status.

Product highlights:

3-stage charger for lead-acid and AGM batteries
charges 12-volt maintenance free, deep cycle, gel-cell, and AGM (Absorbed Glass Mat) batteries
maximum output voltage: 14.4V
output current: 8A
full reverse polarity, short-circuit, and overload protection
dimensions: 6.1"W x 2"H x 3.54"D
weight: 2.2 lbs.
warranty: 1 year
MFR # HF1208
Item # 122HF1208
California customers: Please click here for your Proposition 65 WARNING.

What's in the box:

XS Power HF1208 IntelliCharger owner's manual

Charger w/ two attached cable-clamps on 41" of cable
58" AC power cord (IEC 3-pin)
One T15AL250V 15A fuse (installed)
One F6.3AL250V 6.3A fuse (installed)
2 Spare F15AL250V fuses
Instruction sheet
Warranty information

Researched by Crutchfield's Russ B.

Product Research

Features

Overview: The XS Power HF1208 is an advanced battery charger designed specifically for high performance 12V sealed lead-acid batteries. The charger combines the reliability of a high frequency MOSFET rectified unit with an advanced microprocessor to create a battery charger that can rapidly and safely recharge 12V maintenance free, deep cycle, gel-cell, and AGM (Absorbed Glass Mat) batteries in several sizes. The HF1208 can provide 8 amps of output current for charging.

Three Stage Charging: The HF1208 charges is three stages. The first stage, called "Bulk" charging, the current is fixed and the voltage is allowed to float. During this stage, 80% of the battery's capacity is restored. When the battery's cell voltage is up to the correct level, the second stage called "Absorption" charging is engaged. During this stage, the voltage is fixed and the current is allowed to float. The battery is brought to 100% during this stage and the cells are equalized. The third stage is "Float" charging. During this stage the voltage and current are reduced to a level that will maintain the battery. The whole charging process is microprocessor controlled for accuracy.

Overcharging: Lead-acid batteries have different charging requirements based on their design. Overcharging will reduce the life of any battery, but sealed valve-regulated batteries are especially sensitive to high charging voltages and overcharging. Overcharging and AGM or gel-cell battery will cause permanent damage.

Voltage Monitoring: The battery's terminal voltage is measured every five minutes by the on-board microprocessor and the information is then analyzed, along with the elapsed, time to dynamically control the battery charger for optimum charging performance.

Battery Analysis: When the battery is connected, the microprocessor will analyze it's voltage and if its below 4 volts, the charger won't begin charging. Likewise, if the battery doesn't come up to the correct voltage in a 10 hour period, the microprocessor will automatically shut down the charger.

Cooling: The HF1208 has an internal cooling fan that automatically operates during charging, keeping the internal components at a constant safe temperature.

Status LEDs: The HF1208 includes 2 LED indicators:

Power LED: This illuminates red when the power cord is plugged in and the power switch is turned on.
Charging LED: This illuminates orange or red when in charge mode and changes to green when battery charging is in the final stage. During this final stage, a minimum of 1 hour is required, however 24 hours is recommended for 100% charge.

Fuses: The HF1208 is protected by 2 fuses, a 6.3 amp fuse installed on the AC power input side of the charger, and by a 15 amp fuse installed on the output side. Two additional 15 amp fuses are also provided.

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7 questions already asked

The 1208 does not have a power switch, this may be a dumb question but Iâ??m new to the xs power / agm battery world - should I plug the charger in first, or hook leads to the battery first since thereâ??s no on/off switch?

bob Mar 03, 2023

1 answer

Greetings Bob, and thank you for your question. The HF1208 should have a power on/off switch on the back. The process is as follows, turn switch to off, plug it into a household electrical outlet, connect the positive and negative leads to the battery, turn the switch to on.

thomas Mar 08, 2023 (Staff)

Will this work properly in a dual battery set up? I have an XS under the hood and another in the trunk for car audio

greg Jan 11, 2023

1 answer

Greetings Greg, excellent question. I reached out to the fine people at XS Power, they said it would have zero issues, and you would not have to disconnect anything, Keep both batteries connected, and plug the charger into the main battery.

thomas Jan 11, 2023 (Staff)

Can you leave everything attached while charging?

richard Dec 14, 2022

1 answer

It is not necessary to disconnect the battery while charging.

zachary Dec 14, 2022 (Staff)

Do you have to have a special agm charger to charge a D2400 XS battery? Here is what you are not being told. If your vehicle has a draw that allows a voltage drop below 6 volts and you must recharge the XS battery you will need another battery to recharge the XS to be hooked up in conjunction with the XS battery to trick the XS into charging. Do not let your XS battery drain under 6 volts. If you decide to recharge after the battery has drained to under 6 volts you may need a agm charger that is set to 8 amps or perhaps 15 amp boost to get the battery fully charged. My agm charger which wasn't the XS brand needed a additional battery hooked in series to force the charger work correctly. People who purchase this battery need to know that they may need a specific charger to recharge the battery. Bear in mind that these batteries are two or 3 times heavier than a standard battery. Shipping it back to the manufacturer to get it repaired or charged will cost you at least half the cost of the battery. This will mean a whopping 200.00 or more dollars in shipping cost (regardless of the warranty which would be useless at this point). XS batteries are exceptional batteries other wise!

danny Oct 18, 2022

1 answer

Greetings Danny, and thank you for your question, and comments. Due to the fact XS Power recommends charging with an AGM compatible intelligent charger, that is what we stand with as well. After all they are the manufactures, and improper charging can void the warranty, cause the casing to swell, at that point we would not accept a return on the battery.

thomas Oct 18, 2022 (Staff)

Will this charge the d3400 battery for the initial charge?

connor Sep 05, 2022

1 answer

This charger does work with that battery for the initial charge!

jason Sep 06, 2022 (Staff)

Can I charge sb 500 super cap with this charger?

steve79 Mar 24, 2022

1 answer

There is no mention about this working to charge capacitors in the owner's manual and should not be used to charge yours. Typically, those are wired into a system and charged using the power wiring along with an included resister/bulb.

jason Apr 03, 2022 (Staff)

Will this only work on xs batteries?

nicholas Feb 28, 2022

3 answers

No i also have a yellow top optima battery it works on, I think it will charge all of them

jay n Feb 28, 2022

It will work with any brand agm battery. It is tuned for an optimal charge on an XS power battery.

marcus Feb 28, 2022

I believe that it works on all agm , wet cell and any brand im sure , well worth the investment!!

jeffrey Feb 28, 2022

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XS Power HF1208 IntelliCharger 3-stage charger for 12-volt batteries — 8-amp charge rate

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