LC-X1228P Panasonic - BSG, LC-X1228P Datasheet - Page 14

• Manufacturer Part Number: LC-X1228P
• Description: BATT SEALED LEAD ACID 12V 28AH
• Manufacturer: Panasonic - BSG
• Series: LCr

Specifications of LC-X1228P

• Voltage - Rated: 12V
• Capacity: 28Ah
• Size / Dimension: 6.47" L x 4.92" W x 6.89" H (165mm x 125mm x 175mm)
• Termination Style: Nut/Bolt, M5
• Rechargeability: Yes
• Weight: 25 lbs (11.3kg)
• For Use With: BVW122250003N - BATTERY CHG UNIV 12VDC @ 2.25A271-2390 - BATTERY CHG UNIV 12VDC @ 2.25A271-2386 - BATTERY CHG UNIV 12VDC @ 1.2A271-2385 - BATTERY CHG UNIV 12VDC @ 600MA271-2382 - BATTERY CHG UNIV 12VDC @ 500MA271-2381 - BATTERY CHG UNIV 12VDC @ 500MA271-2380 - BATTERY CHG 120VAC 12VDC @ 500MA271-2378 - BATTERY CHG 120VAC 12VDC @ 300MAPATC-08 - BATT CHARGER 12V 1.5A X 2 UNITPATC-03 - BATTERY CHARGER 12 VOLT 1.5 AMP
• Lead Free Status / RoHS Status: Contains lead / RoHS compliant by exemption
• Other names: LC-X1228; LC-XB1228; LC-XB1228P; LCX1228P; P049

(Positive electrode) (Negative electrode)
GENERAL INFORMATION ON VALVE-REGULATED LEAD-ACID BATTERIES -
Electrochemical Reactions on Electrodes
The electrochemical reaction processes of the
valve-regulated lead-acid battery (negative electrode
recombination type) are described below.
Where “charge” is the operation of supplying the
rechargeable battery with direct current from an
external power source to change the active material
In the final stage of charging, an oxygen-generating
reaction occurs at the positive plates. This oxygen
transfers inside the battery, then is absorbed into the
(Lead dioxide)
PbO
(Positive electrode)
(Negative electrode)
2
+
(Lead)
Pb
+
(Lead sulfate)
(Lead sulfate)
(Sulfuric acid)
Gas recombination reaction cycle
(Electrolyte)
2H SO
PbSO
PbSO
VRLA BATTERIES PAGE 13
2
2
4
4
4
Charge
Charge
Discharge
Charge
in the negative plates chemically, and hence to store
in the battery electric energy in the form of chemical
energy. “Discharge” is the operation of drawing out
electric energy from the battery to operate external
equipment.
surface of the negative plates and consumed. These
electrochemical reaction processes are expressed as
follows.
(Lead)
(Lead dioxide)
Reaction
Pb(O )
PbO
(Positive electrode) (Negative electrode) (Electrolyte)
(Lead sulfate)
2
2
PbSO
Overcharge
4
+
(Lead sulfate)
(Oxygen)
PbSO
O
2
4
AUGUST 2003
+
(Water)
2H O
CONT.
2