As the name implies, this 7-stage high frequency intelligent battery charger is a fully automatic battery charger with 7 charge stages, and the overcharge protection makes it suitable for unattended charge process.
The 7-stage charging is a very comprehensive and accurate charging technique that gives the battery longer life and better performance when compared to using traditional chargers. This product is applicable for most types of battery including GEL, Calcium and Lead-Acid, and it can also help restore drained and sulphated batteries.
For this intelligent battery charger, the 7 charge stages are desulphation, soft start, bulk, absorption, analysis, recondition and float. The following paragraphs briefly introduce functions of each stage.
The desulphation stage is designed to break down sulphation occurring in batteries that have been left flat for extended periods of time, returning them back to full charge. In addition, sulphation occurs when lead-sulphate hardens and clogs up the battery cells.
2. Soft Start
The soft start is a preliminary charge process that gently introduces power to the battery, well protecting the battery and increasing battery life.
3. Bulk (Constant Current)
The bulk stage charges the battery at the maximum rate (constant current), thereby delivering a great deal of energy into the battery within a short period of time. During this stage, the battery will be 80% charged or so, until the voltage reaches 14.4V (for 12V intelligent battery charger) or 28.8V (for 24V intelligent battery charger).
4. Absorption (Constant Voltage)
During absorption process, the charge rate is lowered, allowing the battery to absorb more power to be 100% charged. The voltage is maintained at a constant value, namely 14.4V or 28.8V, while the current is reduced gradually until no more power could be absorbed.
When absorption is finished, an analysis will be carried out immediately to test the battery automatically, and the 90-second-long test is used to make sure if the voltage has reached desired value.
Under the condition that the battery fails the test in Stage 5 which means that the battery is not fully charged, the reconditioning function is initiated automatically to charge the battery at a relative low but constant current for 4 hours. This function could recover the battery from deeply discharged state, and battery performance and service life are both improved. Then, the charging cycle moves to the final stage.
The float stage maintains the battery at 100% charge without overcharging or damaging the battery. So, our intelligent battery charger could be connected to the battery for a long time, truly realizing unattended service.
|Input voltage||220-240V~50Hz, 110V~60Hz|
|Output voltage and current||12V, 5A||12V, 7A||12V, 10A||12V, 12A||12V, 15A||12V, 20A||24V, 5A||24V, 10A|
|Min. start voltage||2V||2V||2V||2V||2V||2V||4V||4V|
|Current fuse rating||250V T3.15A||250V T5A|
|Desulphation||Pulse charge up to 11V||Pulse charge up to 22V|
|Bulk||Up to 14.4V||Up to 28.8V|
|Soft start||Half the rated current up to 12V||Half the rated current up to 24V|
|Absorption||Constant voltage until current drops to 0.75A||Constant voltage until current drops to 1.05A||Constant voltage until current drops to 1.5A||Constant voltage until current drops to 1.8A||Constant voltage until current drops to 2.25A||Constant voltage until current drops to 3A||Constant voltage until current drops to 0.75A||Constant voltage until current drops to 1.5A|
|Battery analysis||Monitors battery voltage for 90 seconds|
|Recondition||Constant current up to 16V for 4hours||Constant current up to 32V for 4hours|
|Float||13.8V with pulse feature||27.6V with pulse feature|
|Short protection||Short circuit protection|
|Polarity reverse||Polarity reverse circuit protection|
|Non battery link protection||Circuit protection|
|Link battery type mistake||Circuit protection|
|Over voltage protection||17.5V||35V|
|Cooling fan||Automatic temperature controlled|
|Type of battery||Most types of lead acid batteries including Calcium, GEL and AGM|
|Packing size and load quantity||300×275×350mm, 10pcs/carton||330×300×350mm, 10pcs/carton||305×300×350, 10pcs/carton|
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