1. Introduction
Welcome to the user manual for the GYSFLASH 30.12 PL, a versatile smart charger designed for 12V lead-acid and lithium iron phosphate (LiFePO4) batteries. This manual provides essential information for safe and effective operation, setup, and maintenance of your charger. Please read this manual thoroughly before using the device.
2. Consignes de sécurité importantes
To ensure safe operation and prevent damage to the charger or battery, observe the following safety precautions:
- Always read the entire instruction manual before operating the charger.
- Assurez une ventilation adéquate pendant la charge afin d'éviter toute accumulation de chaleur.
- Évitez de court-circuiter le câble de charge.amps.
- The charger is equipped with reverse polarity protection; however, always connect the red (+) clamp à la borne positive (+) et à la borne noire (-)amp à la borne négative (-).
- Disconnect the charger from the mains power before connecting or disconnecting the battery clamps.
- N'exposez pas le chargeur à la pluie ou à une humidité excessive.
- Tenir hors de portée des enfants.
- N'essayez pas de charger des piles non rechargeables.
3. Produit terminéview
The GYSFLASH 30.12 PL is a high-power, auto-sensing battery support unit with advanced features for various battery types and applications.
Caractéristiques principales :
- Double Technology: Compatible with both 12V lead-acid (GEL, AGM, liquid, calcium) and lithium iron phosphate (LiFePO4) batteries.
- Puissance de sortie élevée : Delivers a continuous 30 A at 100% duty cycle (40°C).
- Three Charging Currents: Selectable charging currents of 7 A, 15 A, and 30 A to match battery capacity.
- Mode salle d'exposition : Provides a stable power supply of up to 30A for maintaining battery charge in exhibited vehicles or during diagnostic procedures.
- Mode d'approvisionnement : Offers a stable on-board power supply, useful for maintaining vehicle electronics during battery changes or software updates.
- Wide Battery Capacity Range: Charges 12V lead-acid batteries from 15 Ah to 375 Ah and LiFePO4 batteries from 7 Ah to 375 Ah.
- Sauvegarde de la mémoire : Retains vehicle memory information during battery removal.
- Optimized Battery Retention: Can remain connected to the battery during hibernation with an auto-restart function in case of power failure.
- Vol faibletage Chargement : Capable of initiating charging for batteries as low as 2 V.

Figure 1: Front panel of the GYSFLASH 30.12 PL charger, displaying mode selection, battery type indicators, and charging current options.
4. Configuration et connexion
4.1 Déballage
Carefully unpack the GYSFLASH 30.12 PL charger and inspect for any visible damage. Retain the packaging for future storage or transport.
4.2 Connexion à la batterie
- Ensure the charger's power cord is disconnected from the mains power outlet.
- Connectez le rouge (+) charge clamp en toute sécurité à la positif (+) borne de la batterie.
- Connectez le noir (-) charge clamp en toute sécurité à la négatif (-) borne de la batterie.
- Verify that both connections are firm and free from corrosion.
4.3 Raccordement au réseau électrique
Une fois la batterie clamps are securely connected, plug the charger's power cord into a suitable 230V AC, 50/60Hz power outlet.

Figure 2: GYSFLASH 30.12 PL connected to a vehicle battery for charging or support.
5. Mode d'emploi
5.1 Charge automatique
The GYSFLASH 30.12 PL features an integrated temperature sensor that automatically adjusts charging parameters based on the ambient temperature, optimizing charging efficiency and battery life.
5.2 Sélection du mode
Utilisez le "MODE" button on the charger's front panel to select the appropriate charging program for your battery type:
- Pb (Plomb-acide) : Select this mode for 12V lead-acid batteries, including GEL, AGM, liquid, and calcium types. Suitable for capacities from 15 Ah to 375 Ah.
- LiFePO4 (Lithium Iron Phosphate): Select this mode for 12V lithium iron phosphate batteries. Suitable for capacities from 7 Ah to 375 Ah.
5.3 Charging Current Selection
After selecting the battery type, choose one of the three available charging currents (7 A, 15 A, or 30 A) based on the battery's capacity and desired charging speed. Higher currents charge faster but should be appropriate for the battery's specifications.
5.4 Mode Showroom
This mode is designed to provide a stable power supply of up to 30A. It is ideal for maintaining the battery charge in vehicles displayed in showrooms or during diagnostic procedures, preventing battery drain without overcharging.
5.5 Mode d'approvisionnement
The Supply Mode provides a stable on-board power supply to the vehicle's electrical system. This is particularly useful for maintaining power to vehicle electronics when the battery is being changed or during software updates, preventing loss of settings or data.
6. Processus de charge
- Connect the charger to the battery terminals, ensuring correct polarity (red to positive, black to negative).
- Plug the charger's power cord into a mains power outlet.
- Appuyez sur le "MODE" button to select the appropriate battery type (Pb for lead-acid or LiFePO4 for lithium).
- Select the desired charging current (7 A, 15 A, or 30 A) based on your battery's requirements.
- The charger will automatically begin the charging cycle. Monitor the progress indicators on the display.
- Once the charging cycle is complete, first disconnect the charger from the mains power outlet.
- Ensuite, déconnectez le fil noir (-).amp de la batterie, suivi du fil rouge (+)amp.
7. Entretien
- Gardez le chargeur propre et sec. Essuyez le câble.asing avec un doux, damp chiffon. N'utilisez pas de produits chimiques agressifs ou d'abrasifs.
- Rangez le chargeur dans un endroit frais et sec lorsqu'il n'est pas utilisé, à l'abri de la lumière directe du soleil et des températures extrêmes.
- N’essayez pas d’ouvrir le chargeur casing or perform any internal repairs. Refer all servicing to qualified personnel.
- Inspectez régulièrement les câbles de charge et les câbles.ampSurveillez tout signe de dommage, d'usure ou de corrosion. Remplacez immédiatement les composants endommagés.
8. Dépannage
If you encounter issues with your GYSFLASH 30.12 PL, refer to the table below for common problems and solutions.
| Problème | Cause possible | Solution |
|---|---|---|
| Le chargeur ne s'allume pas | No mains power; Faulty power cord/outlet | Vérifiez la connexion électrique ; essayez une autre prise ; inspectez le cordon d’alimentation pour détecter tout dommage. |
| La charge ne démarre pas | Connexion de la batterie incorrecte (polarité inversée) ; Volume de la batterietage too low; Incorrect mode selected | Verify correct polarity; Ensure secure connections; Select correct battery type and current. |
| Le voyant d'erreur est allumé | Internal fault; Battery fault; Overheating | Disconnect charger from mains and battery, then reconnect; Allow charger to cool down; If problem persists, contact support. |
| Le chargeur chauffe | Normal operation; Insufficient ventilation; Overload | Ensure adequate ventilation around the charger; Reduce charging current if possible. |
9. Spécifications techniques
| Spécification | Valeur |
|---|---|
| Marque | GYS |
| Numéro de modèle | 29668 |
| Vol d'entréetage | 230V AC, 50 / 60Hz |
| Volume de sortietage | 12 volts (CC) |
| Courant de charge | 7A, 15A, 30A |
| Types de batteries compatibles | 12V Lead-Acid (GEL, AGM, Liquid, Calcium), 12V LiFePO4 |
| Lead-Acid Battery Capacity | 15 Ah à 375 Ah |
| LiFePO4 Battery Capacity | 7 Ah à 375 Ah |
| Dimensions du produit (L x l x H) | 7.3 x 19 x 19 cm |
| Poids de l'article | 2.21 kg |
| Normes de sécurité | CE |
10. Garantie et assistance
The GYSFLASH 30.12 PL is covered by a Garantie locale d'un an. For technical assistance, warranty claims, or service inquiries, please contact your authorized GYS dealer or the official GYS support center. Please retain your proof of purchase for warranty validation.
For additional information and resources, please visit the official GYS website.





