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Dipper Star Big Screen Display Lithium Battery Charger

I. Basic Parameters and Functions 　· Circuit Structure: Employs a highly efficient and stable single-transistor flyback topology circuit. 　· Input Power Supply: Standard 220V/50Hz household AC power. 　· Charging Efficiency: Normal charging efficiency is approximately 85%. II. Core Protection Functions 1. Short-circuit Protection: When an accidental short circuit occurs in the output circuit, the charger will automatically cut off the output to prevent damage to the device and reduce the risk of fire. 2. Smart Timing Protection: · Efficient Charging Zone: Continuous charging should not exceed 8 hours. · High-Voltage Charging Zone: Continuous charging should not surpass 3 hours. · Total Charging Duration: The combined time for both the efficient and high-voltage zones must remain under 10.5 hours. 3. Reverse-Connection Protection: If the battery is connected backward, the output current will be strictly limited to below 5mA, safeguarding against damage; once corrected, the charger can resume normal operation. 4. Delayed Automatic Cut-off: After charging is complete, the system will automatically switch to trickle charging or completely stop the output (current < 5mA), effectively preventing overcharging of the battery. 5. Pre-Charge Activation (Optional): By delivering intermittent output voltage, this feature helps wake up lithium batteries that are currently in undervoltage protection mode, enabling them to enter normal charging status.

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Function Description of the Dipper Star Big Screen Display Lithium Battery Charger

Sequence	Model	Input		Output		Dimensions
Sequence	Model	Input voltage	Input power	Output voltage (Lithium Iron Phosphate)	Output current	Dimensions
1	48V2A	220V	136W	58.4V	2A	17.4 x 8.9 x 6.3 cm
2	48V3A	220V	204W	58.4V	3A	17.4 x 8.9 x 6.3 cm
3	48V4A	220V	272W	58.4V	4A	18.7 x 9.7 x 6.5 cm
4	48V5A	220V	340W	58.4V	5A	20.2 x 10 x 7.1 cm
5	48V6A	220V	408W	58.4V	6A	20.2 x 10 x 7.1 cm
6	48V7A	220V	477W	58.4V	7A	21 x 10 x 7.1 cm
7	48V8A	220V	505W	58.4V	8A	21 x 10 x 7.1 cm
8	48V9A	220V	570W	58.4V	9A	21 x 10 x 7.1 cm
9	60V3A	220V	255W	73V	3A	18.7 x 9.7 x 6.5 cm
10	60V4A	220V	340W	73V	4A	20.2 x 10 x 7.1 cm
11	60V5A	220V	425W	73V	5A	20.2 x 10 x 7.1 cm
12	60V6A	220V	510W	73V	6A	21 x 10 x 7.1 cm
13	60V7A	220V	596W	73V	7A	21 x 10 x 7.1 cm
14	60V8A	220V	633W	73V	8A	21 x 10 x 7.1 cm
15	60V9A	220V	712W	73V	9A	21 x 10 x 7.1 cm
16	72V3A	220V	306W	87.6V	3A	18.7 x 9.7 x 6.5 cm
17	72V4A	220V	408W	87.6V	4A	20.2 x 10 x 7.1 cm
18	72V5A	220V	510W	87.6V	5A	20.2 x 10 x 7.1 cm
19	72V6A	220V	612W	87.6V	6A	21 x 10 x 7.1 cm
20	72V7A	220V	715W	87.6V	7A	21 x 10 x 7.1 cm
21	72V8A	220V	760W	87.6V	8A	21 x 10 x 7.1 cm
Three-element lithium batteries, lithium iron phosphate batteries, and sodium-lithium batteries—offered in various combinations to deliver different output voltages!
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