1. Inngangur
This manual provides essential information for the safe and efficient operation of your Powertech MB3904 8 Step Intelligent Lead Acid and Lithium Battery Charger. Please read this manual thoroughly before use and retain it for future reference.
2. Öryggisupplýsingar
Fylgdu alltaf eftirfarandi öryggisráðstöfunum:
- Gangið úr skugga um að hleðslutækið sé aftengt frá aflgjafanum áður en tengingar við rafhlöðuna eru gerðar eða rofnar.
- Notið hleðslutækið aðeins á vel loftræstum stöðum.
- Forðastu að hlaða frosnar rafhlöður.
- Ekki útsetja hleðslutækið fyrir rigningu eða miklum raka.
- Geymið þar sem börn ná ekki til.
- This charger is designed for 6V or 12V Lead Acid or LiFePO4 batteries only. Do not use with other battery types.
3. Innihald pakka
Gakktu úr skugga um að allir hlutir séu til staðar í pakkanum:
- Powertech MB3904 8 Step Intelligent Battery Charger Unit
- Rafhlaða Clamp Connectors (Red and Black)
- Ring Terminal Connectors
- Rafmagnssnúra
- Notendahandbók (þetta skjal)

Image: The Powertech MB3904 battery charger unit shown with its various included accessories, including battery clamps, ring terminals, and the AC power cord.
4. Vörueiginleikar
The Powertech MB3904 charger offers advanced features for optimal battery maintenance:
- 8-Step Charging Process: Ensures thorough and efficient charging for various battery types.
- Fjölbinditage Samhæfni: Suitable for both 6V and 12V lead acid and LiFePO4 batteries.
- Alhliða vernd: Includes overload, short circuit, reverse polarity, safety timer, and wrong battery protection.
- Leiðandi LED Vísar: Clearly display charge status and selected mode.
- Hnappur fyrir stillingu: Allows easy switching between charging modes.

Mynd: Ofan frá view of the Powertech MB3904 charger, highlighting the LED indicators for charge status and the 'MODE' button for selecting charging programs.
5. Uppsetning
- Staðsetning: Place the charger on a stable, flat surface in a well-ventilated area, away from direct sunlight or heat sources.
- Rafhlöðutenging: Ensure the battery terminals are clean. Connect the red (+) clamp/ring terminal to the positive (+) battery terminal and the black (-) clamp/ring terminal to the negative (-) battery terminal. Ensure a secure connection.
- Rafmagnstenging: Plug the AC power cord into a suitable wall outlet. The charger will enter standby mode.
6. Notkunarleiðbeiningar
6.1. Val á hleðslustillingu
After connecting the battery and power, press the MODE button to cycle through the available charging programs. The corresponding LED will illuminate to indicate the selected mode:
- 12V 3.8A (Normal): Standard charging for 12V lead acid batteries.
- 12V 3.8A (Cold/AGM): For charging 12V lead acid batteries in cold conditions or AGM batteries.
- 12V 0.9A (Small): For charging smaller 12V lead acid batteries.
- 6V 3.8A: For charging 6V lead acid batteries.
- Lithium (12.8V/12V): For charging 12V LiFePO4 batteries.
- Viðgerð: A special mode for desulfation of deeply discharged lead acid batteries.
6.2. Hleðsluferli
Once a mode is selected, the charger will automatically begin the 8-step charging process. The progress LEDs (25%, 50%, 75%, 100%) will illuminate sequentially to indicate the battery's charge level. When the 100% LED is solid, the battery is fully charged.
6.3. Að aftengja hleðslutækið
- Taktu rafmagnssnúruna úr sambandi.
- Aftengdu svarta (-) clamp/ring terminal from the negative (-) battery terminal.
- Aftengdu rauða (+) clamp/ring terminal from the positive (+) battery terminal.
7. Viðhald
- Þrif: Hreinsið hleðslutækið casinÞurrkið með mjúkum, þurrum klút. Notið ekki slípiefni eða leysiefni.
- Geymsla: Geymið hleðslutækið á köldum, þurrum stað þegar það er ekki í notkun.
- Snúruskoðun: Periodically inspect the power cord and battery cables for any signs of damage. Do not use the charger if cables are damaged.
8. Bilanagreining
| Vandamál | Möguleg orsök | Lausn |
|---|---|---|
| Hleðslutækið kveikir ekki á sér. | Enginn rafmagn kemur úr innstungunni; laus tenging. | Check power outlet; ensure power cord is securely plugged in. |
| Error LED illuminated. | Reverse polarity; short circuit; wrong battery type. | Check battery connections for correct polarity; inspect cables for shorts; ensure battery type matches selected mode. |
| Rafhlaða hleðst ekki. | Battery deeply discharged/damaged; incorrect mode selected. | Try "Repair" mode for lead acid batteries; test battery with a multimeter; ensure correct charging mode is selected. |
9. Tæknilýsing
- Gerð: MB3904
- Inntak Voltage: 220-240V AC, 50/60Hz
- Output Voltage: 6V / 12V DC
- Hleðslustraumur: 0.9A / 3.8A
- Gerðir rafhlöðu: Lead Acid (WET, MF, CA, EFB, GEL, AGM), LiFePO4
- Vörn: Overload, Short Circuit, Reverse Polarity, Safety Timer, Wrong Battery
- Stærðir: Um það bil 20.4 x 7.4 x 4.8 cm
- Þyngd: Um það bil 534 g
- Fylgni: CE
10. Ábyrgð og stuðningur
This Powertech product is covered by a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or contact your retailer.
For technical support or service inquiries, please contact Jaycar Electronics customer service or visit their official webGeymið kaupkvittunina vegna ábyrgðarkröfu.
Jaycar rafeindatækni Websíða: www.jaycar.com.au





