GYS Gysflash 8.12 - Battery charger

Gysflash 8.12 - Battery charger GYS - Free user manual and instructions

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Product type Battery charger
Brand GYS
Model Gysflash 8.12
Output voltage 12 V (6 cells of 2 V)
Charging current 8 A
Compatible battery types Lead (GEL, AGM, WET, MF, CA, etc.)
Battery capacity (charge) 15 to 160 Ah
Battery capacity (maintenance) Up to 240 Ah
Power supply 220-240 V AC, 50-60 Hz
Charging modes Charge (14.4 V / 8 A), AGM/Cold (14.7 V), Refresh (15.8 V), Supply (13.6 V / 8 A)
Charging cycle 8 automatic steps (analysis, recovery, test, desulfation, fast charge, absorption, optional refresh, maintenance)
Protections Short-circuit, reverse polarity, anti-spark, thermal
Temperature sensor Integrated (adaptation of charging current)
Insulation Double insulation (Class II)
Standards European directives, EAC, British, Moroccan
Warranty 2 years (parts and labor)
Recycling Do not dispose of in household waste (selective collection)

Frequently Asked Questions - Gysflash 8.12 GYS

How to start charging with the Gysflash 8.12?
First connect the charger to the battery, then to the mains socket (220-240 V). Press the ▶ button to select the mode. After about 5 seconds, charging starts automatically. The OK light flashes when the battery is ready and stays on when it is fully charged.
What types of batteries can I charge with this model?
The Gysflash 8.12 is designed for 12 V lead batteries, particularly types GEL, AGM, WET, MF (Maintenance Free) and CA (Calcium). It is not suitable for non-rechargeable batteries.
What does the flashing ⚠ light mean?
A flashing ⚠ light indicates a reverse polarity, too high battery voltage, or short-circuited clamps. Check the connections and make sure the battery is 12 V.
What to do if the ⚠ light stays on continuously?
This means charging has failed and the battery is probably unrecoverable. Replace the battery and press the ▶ button to restart charging.
How to use the Supply mode?
The Supply mode (13.6 V / 8 A) allows using the charger as a stabilized power supply for demonstration vehicles or for changing a battery without losing the vehicle's memory. The charge is continuously regulated without time limit.
When should I use the Refresh option?
The Refresh option (15.8 V) is recommended for reconditioning deeply discharged batteries. Caution: it may cause some water loss; check the water level after use. Avoid using it on sealed batteries.
Does the charger have overheat protection?
Yes, the Gysflash 8.12 is equipped with an integrated temperature sensor that adapts the charging current to prevent overheating of the internal electronics. If the ambient temperature exceeds 50 °C, the ⚠ light turns on and charging stops.
How to maintain the charger?
Maintenance is limited to checking the condition of the cables. If the power cable is damaged, it must be replaced by the manufacturer, its after-sales service, or a qualified person to avoid any danger. Do not clean the charger with liquids.
What is the estimated charging time for a 50 Ah battery?
For a 50 Ah battery, the charging time from 20% to 80% is approximately 5 hours with the Gysflash 8.12 (maximum charging current of 8 A).
Is the Gysflash 8.12 compatible with modern vehicles?
Yes, this charger is compatible with vehicle electronics thanks to its double insulation and its protections against short circuits and reverse polarity. It can be used safely on most cars.

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Download the instructions for your Battery charger in PDF format for free! Find your manual Gysflash 8.12 - GYS and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. Gysflash 8.12 by GYS.

USER MANUAL Gysflash 8.12 GYS

natural_image Technical line drawing of a mechanical housing component with mounting holes and internal components (no text or symbols)

FR 2-5 / 30-32

GYSFLASH 8.12 GYSFLASH 12.12

EN 6-9 / 30-32

DE 10-13 / 30-32

ES 14-17 / 30-32

RU 18-21 / 30-32

NL 22-25 / 30-32

IT 26-29 / 30-32

INSTRUCTIONS DE SÉCURITÉ

GYS Gysflash 8.12 - INSTRUCTIONS DE SÉCURITÉ - 1

line | Time Interval | U (Line) | I (Line) | | ------------------- | -------- | -------- | | < 1s | Low | Low | | Max 5h | High | Low | | < 1s | High | Low | | Max 12h | High | Low | | Max 20h | Medium | Medium | | Max 8h | Medium | Medium | | 1h - 4h | High | Low | | no limit | Low | Low |

ANOMALIES, CAUSES, REMÈDES

CONDITIONS DE GARANTIE

This manual contains safety and operating instructions, to be followed for your safety.

Please read it carefully before using the device for the first time and keep it for future reference.

This device may only be used for charging and/or power supply within the limits indicated on the device and manual. The operator must observe the safety precautions. In case of improper or unsafe use, the manufacturer cannot be held liable.

This unit can be used by children aged of at least 8 years and by people with reduced physical, sensory or mental capabilities or lack of experience or knowledge, if they are properly monitored or if instructions for using the equipment safely was given to them and if they have been made aware of the risks. Children must no play with the product. Cleaning and maintenance should not be performed by unsupervised children.

Do not use to charge small batteries or non rechargeable batteries.

Do not operate the device with a damaged power supply cord or a damaged mains plug.

Do not use the device if the charging cable appears to be damaged or assembled incorrectly in order to avoid any risk of short circuiting the battery.

The operating mode of the automatic charger and the restrictions applicable to its use are explained below in this manual.

GYS Gysflash 8.12 - CONDITIONS DE GARANTIE - 1

Fire and explosion risks!

A charging battery can emit explosive gases.

- During the charge, the battery must be placed in a well ventilated area.

- Avoid flames and sparks. Do not smoke.

Connection / disconnection:

- Ensure that the charger's power supply is disconnected before plugging or unplugging the connections on the battery.

- Always ensure the Red clamp is connected to the «+» battery terminal first. If it is necessary to connect the black clamp to the vehicle chassis, make sure it is a safe distance from the battery and the fuel/exhaust pipe. The charger must be connected to the mains.

• After charging, disconnect the charger from the mains, then disconnect the clamp from the car body and then disconnect the clamp from the battery, in the indicated order.

GYS Gysflash 8.12 - CONDITIONS DE GARANTIE - 2

Connection:

- Class II device

GYS Gysflash 8.12 - CONDITIONS DE GARANTIE - 3

- The connection to the power supply must be carried out in compliance with national standards.

Maintenance:

- If the power cable is damaged, it must be replaced by the manufacturer, its after sales service or an equally qualified person to prevent danger.

GYS Gysflash 8.12 - Maintenance: - 1

Regulations:

• Machine compliant with European directives.
- The certificate of compliance is available on our website.
• EAC Conformity marking (Eurasian Economic Community)
- Equipment in compliance with British requirements. The British Declaration of Conformity is available on our website (see home page).
• Equipment in conformity with Moroccan standards.
- The declaration C_p (CMIM) of conformity is available on our website (see cover page).

GYS Gysflash 8.12 - Regulations: - 1

GYS Gysflash 8.12 - Regulations: - 2

GYS Gysflash 8.12 - Regulations: - 3

GYS Gysflash 8.12 - Regulations: - 4

Waste management:

- This product should be disposed of at an appropriate recycling facility. Do not throw away in a domestic bin.

GENERAL DESCRIPTION

Your Gysflash is ideal to charge most lead-acid batteries, often used for cars and many other vehicles. These batteries can be of many types ex: GEL (gel electrolyte), AGM (absorbed glass mat), WET, MF (Maintenance Free), CA (Calcium)...

The Gysflash 8.12 is designed to charge 12V batteries (6*2V elements) from 15Ah to 160Ah and up to 240Ah for floating charge.

The Gysflash 12.12 is designed to charge 12V batteries (6*2V elements) from 20Ah to 250Ah and up to 330Ah for floating charge.

Its power supply mode (SUPPLY) provides current for demonstration vehicles and enables battery replacement without vehicle system's memory loss.

GYS Gysflash 8.12 - GENERAL DESCRIPTION - 1

AUTOMATIC TEMP. SENSOR

The GYSFLASH 12.12 is fitted with an integrated temperature probe that ensures that the voltage output is adapted to the ambient temperature. This adjustment is done in charge or in supply mode, it ensures a highly precise charge adapted to the ambient temperature.

START UP

  1. Connect the charger to the battery.
  2. Plug the charger to the mains (single phase 220-240Vac 50-60Hz).
  3. Select the mode by pressing the button. After roughly 5 seconds, the charge starts automatically.
  4. During the charge, the device indicates the charge's progress. When the indicator OK blinks, the battery is ready to start the vehicle. Once the indicator OK stays on, the battery is completely charged.
  5. The charge can be interrupted at any time by unplugging the mains plug or pressing the button.
  6. After charging, disconnect the charger from the mains, then disconnect the charger's connections from the battery.

CHARGE MODES

- Modes and Options description:

GYS Gysflash 8.12 - - Modes and Options description: - 1

CHARGE mode (14.4V / 8A-12A):

Mode designed to charge and maintain (floating charge) 12V lead-acid batteries. 8 steps automatic maintenance cycle.

GYS Gysflash 8.12 - - Modes and Options description: - 2

AGM

COLD/AGM or AGM Option (14.7V):

Modifies the charging voltage at 14.7V for some AGM batteries or batteries with caps. For the Gysflash 8.12, this option allows to charge the battery during cold weather (Less than 5°C).

refresh

REFRESH Option (15.8V):

Option which add an extra step (step 7) to the charge cycle to restore deeply discharged batteries. ⚠: this option is not recommended for charging sealed batteries.

Recommendation: Check the battery's water level and if necessary, perform with a Refresh charge.

GYS Gysflash 8.12 - - Modes and Options description: - 3

SUPPLY Mode (13.6V/7A):

This mode enables to use the charger as a stabilised power supply, with a voltage regulated at 13.6V. This mode is designed for providing a power supply to demonstration vehicles and can also be used to replace a vehicle's battery while maintaining the system's memory. With this mode, there is no time limit.

When the OK indicator is on, the volvage is properly regulated. If the indicator blinks, this means that the current absorbed by the battery is higher than the charger's maximum current (8A or 12A) and that the battery might end up being discharged.

- Charging curve:

The GYSFLASH 8.12 and 12.12 use an 8 steps charging curve which guarantees optimal performance for your battery.

GYS Gysflash 8.12 - - Charging curve: - 1

line | Time Interval | U (Line) | I (Line) | | ------------- | -------- | -------- | | < 1s | Low | Low | | Max 5h | High | Low | | < 1s | High | Low | | Max 12h | High | Low | | Max 20h | Medium | Low | | Max 8h | Medium | Low | | 1h - 4h | High | Low | | no limit | Low | Low |

Step 1 : Analysis

Analyses the battery state (charge level, polarity inversion, wrong battery...)

Step 2: Recovery (3A-4A)

Damaged elements recovery due to an extended deep discharge algorithm.

Étape ③ : Test

Sulfated battery test

Step 4 : Desulfation (15.8V)

Battery desulfation algorithm.

Step 5: Charge (8A-12A)

Fast charge with maximum current that can reach 80% charge level.

Step 6 : Absorption (14.4V or 14.7V with option ✕/AGM)

Constant voltage charge to reach a 100% charge level.

Step 7: Refresh (option 15.8V)

If the refresh option has bene selected, the charger will inject an additional current that will generate some gas, thus reconditioning the battery's cells. During this phase, the battery may lose a bit of water.

Step 8: Floating charge (13.6V)

Maintains battery charge level at its maximum.

● Estimated charge timeGYSFLASH 8.12GYSFLASH 12.12
Battery capacity 20Ah 50Ah 100Ah 160Ah20Ah50Ah100Ah160Ah250Ah
Charging time 20% >>> 80% 2h 5h 9h14h1h3h5h13h

- Protections :

GYS Gysflash 8.12 - - Protections : - 1

The GYSFLASH 8.12 and 12.12 have several features to protect them against short-circuits or polarity inversions. They have an anti-spark feature which prevents sparks whilst connecting the device to the battery. This charger has double insulation and is compatible with vehicle's onboard electronics.

The GYSFLASH is fitted with an integrated temperature probe that ensures that the charging current is adapted to the ambient temperature to prevent internal electronics' overheating.

TROUBLESHOOTING

SymptomsCausesRemedies
1The indicator GYS Gysflash 8.12 - - Protections : - 2 blinks.Polarity inversionBattery voltage is too highClamps in short-circuitCheck that the clamps are properly connected.Check that it is a 12V battery.
2The indicator GYS Gysflash 8.12 - - Protections : - 3 is on.Charge failure, battery non recoverable.Change the battery and press to restart a charge.
3The indicator GYS Gysflash 8.12 - - Protections : - 4 stays on even after pressing the GYS Gysflash 8.12 - - Protections : - 5 button.Thermal protection.Ambient temperature is too high (>50°C), cool the room and let the charger cool down.
4The indicator GYS Gysflash 8.12 - - Protections : - 6 blinks.Charger in sleep mode.Press the button or connect a battery to the charger to exit sleep mode.
5The indicator GYS Gysflash 8.12 - - Protections : - 7 stays on.Charge interrupted by pressing the button.Press again to restart the charge.

WARRANTY

The warranty covers faulty workmanship for 2 years from the date of purchase (parts and labour).

The warranty does not cover:

  • Transit damage.
  • Normal wear of parts (eg. : cables, clamps, etc..).
  • Damages due to misuse (power supply error, dropping of equipment, disassembling).
  • Environment related failures (pollution, rust, dust).

In case of failure, return the unit to your distributor together with:

  • The proof of purchase (receipt etc ...)
  • A description of the fault reported

SICHERHEITSHINWEISE

GYS Gysflash 8.12 - SICHERHEITSHINWEISE - 1

line | Time Period | Voltage (U) | Current (I) | | ----------------- | ----------- | ----------- | | < 1s | Low | Low | | Max 5h | High | Low | | < 1s | High | Low | | Max 12h | High | Low | | Max 20h | Medium | Low | | Max 8h | Medium | Low | | 1h - 4h | High | Low | | no limit | Low | Low |

Stufe 1: CC Test

Stufe 5: Charge (8A-12A)

line | Time Period | U | I | | ----------------- | ------- | ------- | | < 1s | High | Low | | Max 5h | Medium | Low | | < 1s | Low | Low | | Max 12h | High | Low | | Max 20h | Medium | Low | | Max 8h | Low | Low | | 1h - 4h | High | Low | | no limit | Low | Low |

Etapa 1 : Análisis

line | Time Interval | Intensity | | ------------- | --------- | | < 1s | Low | | Max 5h | Low | | < 1s | Low | | Max 12h | Low | | Max 20h | Low | | Max 8h | Low | | 1h - 4h | Low | | no limit | Low |

Этап 1 : Анализ

line | Time Period | U | I | | ----------------- | ---- | ---- | | < 1s | High | Low | | Max 5h | High | Low | | < 1s | High | Low | | Max 12h | High | Low | | Max 20h | High | Low | | Max 8h | High | Low | | 1h - 4h | High | Low | | no limit | High | Low |

Fase 1: Analisi

text_image 2 3 4 5 OK U I 7 refresh 8

GYS Gysflash 8.12 - Fase 1: Analisi - 1

text_image SUPPLY CHARGE ADVANCED OPTIONS 136V 15,460Ah refresh AGM GYSFLASH 8.12 GYS 8 STEPS SMART CHARGER - 78A 12V

GYS Gysflash 8.12 - Fase 1: Analisi - 2

text_image 8.12 ⑪ ⑩

GYS Gysflash 8.12 - Fase 1: Analisi - 3

text_image 2 3 4 5 OK 7 refresh AUTOMATIC TEMP. SENSOR

GYS Gysflash 8.12 - Fase 1: Analisi - 4

text_image SUPPLY CHARGE ADVANCED OPTIONS 13.6V 20kΩ refresh ADM GYSFLASH 12.12 GYS 8 STEPS SMART CHARGER - 712A 012V 16789

GYS Gysflash 8.12 - Fase 1: Analisi - 5

text_image 12.12 ⑪ ⑩

FR EN DE ES RU NL IT

1Boutonde sélectionSelection button Auswahl-TasteBotón deselecciónКнопка выбора Selectie knop Tasto di selezione
2Veille Sleep mode STAND BY En espera Режим ожидания Stand by Veglia
3Charge en coursChargingLadefortschrittEn proceso decargaИдет зарядка Opladen is bezig Carica in corso
4Charge terminée Charge finishedAufladen beendetCarga terminadaЗарядказаконченаOpladen klaar Carica terminata
5DéfautFaultFehlerFalloОшибкаFoutPredefinito
6Mode SupplySupply modeSupply-ModusModo SupplyРежим SupplySupply ModusModo Supply
7Mode ChargeCharge modeCharge-ModusModo CargaРежим ЗарядкиLaad ModusModo Carica
8Option Froid/AGMCold/AGM optionKühl/AGM-OptionОpción Frío/AGMОпция Холод/AGMOptie Koud/AGMOpzione Freddo/AGM
9Option RefreshRefresh optionRefresh-OptionОpción RefreshОпция RefreshOptie RefreshOpzione Refresh
10Pinces de chargeCharge clampsLadeklemmePinzas de cargaЗажимы зарядкиLaad klemmenMorsetti di carica
11Prise secteurMains plugNetzsteckerClavija de corrienteСетевая вилкаStopcontactSpina

GYS Gysflash 8.12 - Fase 1: Analisi - 6

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Product information

Brand : GYS

Model : Gysflash 8.12

Category : Battery charger