Factory Direct: DKGB2-1600-2V1600AH Sealed Gel Lead Acid Battery

1. Charging efficiency: The usage of imported low resistance raw materials and advanced process help make theinternal resistance smaller and the acceptance ability of small current charging stronger. 2. High and low temperature tolerance: Wide temperature range (lead-acid:-25-50 C ,and gel:-35-60 C), suitablefor indoor and outdoor use in varies environments. 3. Long cycle-life: The design life of lead acid and gel series reach to more than 15 and 18 years respectively, forthe arid is corrosion- resistant. and electrolvte is without risk of stratification by using multiple rare-earth alloy ofindependent intellectual property rights, nanoscale fumed silica imported from Germany as base materials, andelectrolyte of nanometer colloid all by independent research and development. 4. Environment-friendly: Cadmium (Cd), which is poisonous and not easy to recycle, does not exist. Acid leakageof gel electrolvte will not happen. The battery operates in safety and environmental protection. 5. Recovery performance: The adoption of special alloys and lead paste formulations make a low self-dischargerate, good deep discharge tolerance, and strong recover capability.

Model	Voltage	Capacity	Weight	Size
DKGB2-100	2v	100Ah	5.3kg	17171205*205mm
DKGB2-200	2v	200Ah	12.7kg	171110325*364mm
DKGB2-220	2v	220Ah	13.6kg	171110325*364mm
DKGB2-250	2v	250Ah	16.6kg	170150355*366mm
DKGB2-300	2v	300Ah	18.1kg	170150355*366mm
DKGB2-400	2v	400Ah	25.8kg	210171353*363mm
DKGB2-420	2v	420Ah	26.5kg	210171353*363mm
DKGB2-450	2v	450Ah	27.9kg	241172354*365mm
DKGB2-500	2v	500Ah	29.8kg	241172354*365mm
DKGB2-600	2v	600Ah	36.2kg	301175355*365mm
DKGB2-800	2v	800Ah	50.8kg	410175354*365mm
DKGB2-900	2v	900AH	55.6kg	474175351*365mm
DKGB2-1000	2v	1000Ah	59.4kg	474175351*365mm
DKGB2-1200	2v	1200Ah	59.5kg	474175351*365mm
DKGB2-1500	2v	1500Ah	96.8kg	400350348*382mm
DKGB2-1600	2v	1600Ah	101.6kg	400350348*382mm
DKGB2-2000	2v	2000Ah	120.8kg	490350345*382mm
DKGB2-2500	2v	2500Ah	147kg	710350345*382mm
DKGB2-3000	2v	3000Ah	185kg	710350345*382mm

Lead ingot raw materials

Polar plate process

Electrode welding

Assemble process

Sealing process

Filling process

Charging process

Storage and shipping

Charge and discharge test of storage battery Purpose of charging and generating test Through the regular charging and discharging test of the battery pack, its performance can be improved, its excitation capacity can be increased, its service life can be extended, and faulty batteries can be found and handled in time to prevent the problem from expanding. Meet the conditions of regular charge discharge test 1. The battery is not used for more than three months; 2. Floating charge voltage of single battery is lower than 2.18V; 3. The battery releases more than 15% of the rated capacity; 4. The battery has operated in floating charge state for more than one year; 5. Replace some batteries with low capacity; 6. The battery shall be subject to check discharge once a year to discharge 40-50% of the rated capacity; 7. The capacity test shall be conducted for the storage battery every 3 years to release 80% of the rated capacity. Charging and discharging test scheme of storage battery 1. First, conduct 0.1C10 constant current discharge on the storage battery. If the voltage of a single battery drops to 1.8V, terminate the discharge; 2. Then carry out 0.1C10 constant current charging. When the average monomer voltage rises to 2.25-2.35V, it will turn to floating charging state. Discharge current and time 1. The resistance constant current method is used for discharge, and the discharge current shall not exceed the current rate of 10 hours. Taking the battery capacity of 200Ah as an example, the discharge current is 0.1C10, that is, 20A; 2. Discharge time: calculated by 40% of rated discharge capacity, t=40% * 200/20=4h; 3. After the discharge, the battery shall be charged and cannot be put aside. Daily operation mode of DC system 1. The charger module runs parallel with the battery on the DC bus; 2. The 400V AC power supply supplies power to all loads on the DC bus through the charging module, while floating charging the battery.