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UPS-Flooded Flat Plate-STANGUARD Range
Features

Microporous Ceramic Vent Plugs

 

Low Maintenance

Less Acidic Fumes, suitable for Home and Offices

More Electrolyte Volume

Polyethylene based Envelope Separator

Design for Deep Discharge Cycle during Frequent Power-cuts

Well Balanced Positive and Negative Plates

Compact, Attractive and Environment Friendly

Better Reliability High Rate Discharge
Applications
Online & Offline UPS Systems  
The STANGUARD-SG Series
SPECIFICATIONS CHART
Battery
Type
Nominal
Volts
Rated Capacity (Ah) at 27°C (1.280 sp.gr.) Dimensions (mm) + 3 mm Weight±5%, (Kg)
20 Hr @ 1.75V/Cell 10 Hr @ 1.75V/Cell Length Width Height Dry Filled
SG 50                
SG 70 12 70 60 410 176 281 15.60 27.30
SG 100                
 
BATTERY CHARGING SCHEDULE
Battery
Type
Nominal
Volts
Rated Capacity (Ah)
at 27°C, 20 Hr @ 1.75V/Cell
Initial Charge at Constant Current (A) Minimum Ah Input During Initial Charge Approx. Acid Qty (1.220 Sp. Gr.) in ltr Constant Potential Limiting Current (A) Trickle Charge Current (mA)
Start (upto 2.35 vpc) Finish (upto 2.75 vpc) Min Max
SG50                  
SG70 12 70 7.2 3.6 210 9.3 15 60 240
SG100                  

a)   For Constant Potential Charging Higher rates are permissible for Maximum Charger setting of 2.40 vpc.
b)  Trickle Charge Voltage should be adjusted between 2.15 – 2.20 vpc.

Initial Charging Instructions
Fill up to the Required level with Battery Grade dilute Sulphuric Acid
Filling in specific gravity 1.220±0.005 at 27°C

Rest period 12 hrs.

Minimum Ah input as per above chart.

In order to reduce the charging time, the initial charging current would be as specified till 2.35 Volts/Cell followed by finishing current as specified till 2.75 Volts/Cell.

However in both cases, Minimum Ah input to be given. Under no circumstances, battery temperature should exceed 50°C.
In case the temperature exceeds 50°C, adequate rest to be given till the electrolyte temperature comes to ambient temp. and charging to be continued

Condition of fully charged –

 

a. 3 consecutive hourly readings of specific gravity and voltage become constant.

 

b. Top of charge voltage will be around 16.2V – 16.5V

 

c. All cells should gas freely.

 

d. Minimum Ah has been given
Specific gravity at fully charged condition – 1.250±0.005 at 27°C
 
Normal Recharging Instructions
 
 

Battery should be re-charged through an Inverter at constant potential mode of 14.4V with limited current as specified. After battery potential reaches 14.4V, the battery should continue in float charge mode at constant potential of 13.8V.

   
Statutory Notice
 

All batteries contain lead, which is harmful for humans and environment. As per statutory requirements, the used battery must be returned to the authorized dealer, manufacturer or at the designated collection centers.

 

 
 
 
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