Residential Battries ESS CFE-640S 12.8V 50Ah 640Wh

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l Volumetric Energy Density increased by 23.5%

l LED power display screen and switch buttons

l Rugged stainless steel body ensures 5 years warranty

l High protection level IP65

l Support 1C charge / discharge and excellent heat dissipation design

l Quick connection and insulation protection

l Stainless steel handles guarantees 3000 fatigue tests

l Supports four external connections in series with voltage

Product Spec
Name	CFE-640S
Model	12.8V50Ah
Nominal Voltage	12.8V
Nominal Capacity @1C	50Ah
Charge Voltage	14.8V
Charge Current Max Continuous	25A
Discharge Current Max Continuous	50A
Discharge Voltage Minimum	10.8V
Pulse Current 5 Sec	75A
Weight	6.7kg±0.5kg
Dimensions LWH（mm）	180140210

Residential Battries ESS CFE-640S 12.8V 50Ah 640Wh

Q: What is the difference between a maintenance-free battery and a conventional battery?: Lead-acid battery is composed of positive and negative plates, partitions, shell, electrolyte and wiring pile head and other components, the discharge of the chemical reaction is to rely on positive electrode active substances (lead dioxide and lead) and negative plate active substances (sponge Pure lead) in the electrolyte (dilute sulfuric acid solution) under the action, which plate grid, the traditional battery lead and antimony alloy manufacturing, maintenance-free battery is made of lead calcium alloy, the former with antimony, the latter with calcium, This is the fundamental difference between the two points.

Q: How to determine the battery is good or bad?: Observe the battery electrolyte is turbid, turbidity that the battery positive plate softening. Observe the bottom of the battery whether there is sediment, if the plate off the battery capacity has been inadequate. Hand hit the battery two electrode piles If you hear an empty voice that pole pile and plate break. With a thick wire short-circuit positive and negative pile observation of the battery filling holes, such as the discovery of a bubble appears that the interval has been damaged.

Q: How to deal with waste batteries?: The old battery is ground and then sent to the furnace for heating, then the volatile mercury can be extracted, the temperature is higher when the zinc is also evaporated, it is also precious metals. Iron and manganese fusion after the steel to become the required ferromanganese alloy.

Q: What are the hazards of battery over discharge?: Crystalline conductivity is poor, and bulky, will clog the pores of the battery plate, affecting the battery electrolyte penetration and exchange, but also further increase the battery resistance, a long time will prevent the battery power and chemical energy Of the reversible conversion, resulting in poor recovery of the battery charge, the battery was seriously damaged, or even unable to repair until scrapped.

Q: Maintenance-free battery how to detect it?: Check the height of the electrolyte at least once a month. There is no mark line of the battery, the electrolyte added to the plate 10-15mm can be higher; there are two red line of the battery, the electrolyte can not exceed the red line above.

Q: 80ah how much battery storage capacity?: 0AH storage is 80AH ah If the actual storage capacity will have to see the brand. I have seen 100AH only 24 pound. This is not even 60AH.

Q: How does the battery increase the voltage?: The so-called battery is the storage of chemical energy, if necessary, the release of electrical energy of an electrical chemical equipment.

Q: What is a maintenanceable battery?: It also has a shock, high temperature, small size, self-discharge characteristics. Life is generally twice the ordinary battery.

Q: Battery 200ah / 104 what does that mean?: Lead-acid battery nominal voltage is 2V / (each or monomer), but in fact will be higher than 2V, so the actual use and charging equipment for the matching will use 104, also useful 103, also useful 108 Only.

Q: Lead-acid battery how to maintain?: Open the rubber cap, exposing the exhaust raft, you can see the battery inside, some of the battery exhaust cutting can be unscrewed.

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