1. Enstriksyon Sekirite Enpòtan
Read all safety warnings and instructions carefully before operating this device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Pwovizyon pou pouvwa: The Sunkko 788H requires a robust power supply. The rated current of the leakage protection switch should be over 60A. Use of this device with standard household circuits (typically 20A maximum) is not recommended and may cause circuit breakers to trip or damage to the electrical system.
- Vantilasyon: Operate the welder in a well-ventilated area to prevent overheating and accumulation of fumes.
- Pwoteksyon je: Always wear appropriate eye protection (e.g., welding goggles or face shield) to protect against sparks and intense light.
- Sekirite elektrik: Pa opere aparèy la ak men mouye oswa nan damp conditions. Ensure all connections are secure before powering on.
- Manyen elektwòd: Electrodes can become hot during operation. Allow them to cool before handling or adjusting.
- Timoun ak bèt kay: Kenbe aparèy la lwen timoun ak bèt kay.
- Itilizasyon apwopriye: Use the device only for its intended purpose of spot welding and battery charging/testing.
2. Pake kontni
Verifye ke tout atik ki nan lis anba a yo enkli nan pakè ou a. Si gen nenpòt atik ki manke oswa ki domaje, tanpri kontakte founisè ou a.

Imaj: Plis paseview of the Sunkko 788H spot welder and its standard included parts.
- Sunkko 788H Spot Welder Unit (1 set)
- Manyèl itilizatè (1 pc)
- Hex Wrench (1 pc)
- Fuse Tube (2 pcs)
- Welding Pins (2 pairs)
- Charging Wires (2 pcs)
- Fixture for 6 Batteries (1 pc)
- Nickel Sample Strips (100 pcs)
- Foot Pedal Switch (1 pc)
- Kab pouvwa (1 pc)
3. Pwodwi souview
The Sunkko 788H is a versatile dual-pulse spot welder and battery charger designed for assembling battery packs, particularly 18650 cells, and for general spot welding applications. It features precise microcomputer control for welding parameters and an adjustable charging function.

Image: The Sunkko 788H LED Dual Pulse Spot Welder and its accessories.

Image: Close-up of the Sunkko 788H front control panel, showing displays and adjustment knobs.
Karakteristik kle:
- Microcomputer controlled dual-pulse spot welding.
- Adjustable welding current (50-800A) and pulse time (1ms-19ms).
- Integrated battery charger with adjustable voltage (4.2-36V) ak kouran (0-3A).
- Battery testing function to measure voltage.
- Foot pedal for precise welding control.
- Adjustable welding pressure knob for consistent welds.
4. Enstalasyon
Follow these steps to set up your Sunkko 788H unit before first use.
- Debake: Retire tout konpozan yo nan anbalaj la avèk prekosyon. Kenbe anbalaj la pou depo oswa transpò pita.
- Plasman: Place the unit on a stable, flat, and non-flammable surface in a well-ventilated area. Ensure there is adequate space around the unit for air circulation.
- Koneksyon pouvwa: Connect the power cable to the unit and then to a suitable 110V AC, 60Hz power outlet. Ensure the circuit can handle the required current (over 60A recommended).

Imaj: Bò kote view of the Sunkko 788H, showing ventilation and power input location.
- Install Welding Pins: Insert the welding pins into the designated slots on the front of the unit. Secure them firmly using the provided hex wrench. Ensure the tips are aligned and clean.

Image: Close-up of the welding terminals on the Sunkko 788H, where welding pins are inserted.
- Connect Foot Pedal: Plug the foot pedal switch into the 'PEDAL INTERFACE' port on the front panel.
- Adjust Welding Pressure: Use the knob on top of the unit to adjust the welding pressure. This knob controls the force applied by the welding pins. A typical range is 300g-750g. Adjust based on material thickness and desired weld quality.

Image: Close-up of the welding pressure adjustment knob located on the top of the Sunkko 788H unit.
5. Operasyon Enstriksyon
5.1 Spot Welding Function
The 788H offers precise control over welding parameters for various materials, primarily nickel strips for battery pack assembly.
- Pouvwa sou: Flip the 'POWER' switch to the ON position. The display will illuminate.
- Select Welding Mode: Ensure the 'WELDING / CHARGE' switch is set to 'WELDING'.
- Mete Kouran: Use the 'SET CURRENT' knob to adjust the welding current. The display shows the current level (e.g., 0-99). Start with lower settings and increase gradually. For 0.1-0.2mm nickel strips, typical settings range from 50-800A.
- Set Pulse Mode: The unit supports single or dual pulse welding. Adjust the pulse setting based on the material thickness and desired weld strength. Dual pulse is generally recommended for stronger, more consistent welds.
- Prepare materyèl: Clean the surfaces to be welded. Place the nickel strip over the battery terminal or other material.
- Pozisyon Elektwòd yo: Carefully position the welding pins onto the nickel strip, ensuring both pins make firm contact with the strip and the underlying material.
- Kòmanse Soudi: Press the foot pedal to initiate the weld. The unit will deliver the set pulse(s).
- Enspekte soude a: After welding, inspect the joint for strength and appearance. Adjust current and pulse settings as needed. For pure nickel strips, 0.1-0.15mm thickness is typically supported effectively.
5.2 Battery Charging Function
The 788H can also function as an adjustable battery charger.
- Chwazi Mòd Chaje a: Flip the 'WELDING / CHARGE' switch to 'CHARGE'.
- Konekte batri: Use the provided charging wires to connect the battery to the 'CHARGE' terminals (red for positive, black for negative).
- Mete Voltage: Use the 'VOLTAGE' knob to set the desired charging voltage (4.2V - 36V). Ensure this matches the battery's nominal voltage.
- Mete Kouran: Use the 'CURRENT' knob to set the desired charging current (0A - 3A). A common charging rate is 0.5C to 1C of the battery's capacity.
- Siveye chaje: Ekspozisyon an ap montre aktyèl voltage and current. Monitor the charging process and disconnect the battery once fully charged to prevent overcharging.

Image: Close-up of the battery charging and testing terminals on the Sunkko 788H.
5.3 Battery Testing Function
The unit can also test the voltage of connected batteries.
- Select Test Mode: Ensure the 'WELDING / CHARGE' switch is set to 'CHARGE'.
- Konekte batri: Connect the battery to the 'TEST' terminals using the charging wires.
- Li Voltage: Ekspozisyon an ap montre aktyèl voltage of the connected battery. This can be used to check the battery's state of charge or identify faulty cells.
6. Antretyen
Regular maintenance ensures the longevity and optimal performance of your Sunkko 788H.
- Netwayaj: Kenbe aparèy la pwòp epi san pousyè ak debri. Sèvi ak yon twal sèk epi mou pou netwaye. Pa sèvi ak pwodui netwayaj likid.
- Swen Elektwòd: Regularly inspect the welding pins for wear or carbon buildup. Clean or sharpen the tips as needed to ensure good contact and consistent welds. Replace worn-out pins promptly.
- Vantilasyon: Asire w ke fant vantilasyon yo sou aparèy la pa bloke pou anpeche li chofe twòp.
- Depo: When not in use, store the unit in a dry, cool place away from direct sunlight and moisture.
NAN. Depanaj
This section addresses common issues you might encounter with the Sunkko 788H.
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Aparèy pa limen. | Pa gen kouran; Interrupteur kouran an etenn; Fuzib la boule. | Check power cable connection; Ensure power switch is ON; Check and replace fuse (20A). |
| Weak or no weld. | Insufficient current setting; Dirty/worn electrodes; Poor contact; Incorrect material. | Increase 'SET CURRENT'; Clean or sharpen electrode tips; Ensure firm contact with material; Use pure nickel strips for best results. |
| Circuit breaker trips during welding. | Power supply circuit is insufficient (less than 60A); Overload. | Ensure the power circuit has a rated current of over 60A; Reduce welding current setting. |
| Batri pa chaje. | Incorrect charging mode; Loose connections; Voltage/current set too low. | Ensure 'CHARGE' mode is selected; Check charging wire connections; Adjust 'VOLTAGE' and 'CURRENT' knobs. |
8. Espesifikasyon teknik
| Spesifikasyon | Valè |
|---|---|
| Modèl | 788H |
| Pwovizyon pou pouvwa | 110V AC, 60Hz |
| Kouran prensipal | 2 - 15 A |
| Kouran soude | 50 - 800 A |
| Tan batman kè | 1 ms - 19 ms (adjustable) |
| Chaje Voltage | 4.2 - 36 V (adjustable) |
| Chaje aktyèl | 0 - 3 A (adjustable) |
| Epesè soude | 0.1 - 0.2 mm (for nickel-plated steel); 0.1 - 0.15 mm (for pure nickel) |
| Pwa | 4.3 kg (unit only); 4.97 kg (packaged) |
| Dimansyon (L x W x H) | 140 x 245 x 200 mm (unit only); 33.78 x 26.67 x 18.54 cm (packaged) |
9. Garanti ak sipò
Specific warranty information for the Sunkko 788H is not provided in the product details. For any warranty claims, technical support, or service inquiries, please contact the original seller or manufacturer directly. Retain your proof of purchase for any potential claims.