Flooded Tubular Lead Acid Batteries

Charging

IU - characteristic

Imax without limitation at U=2.23V/cell +/- 1%

Float current

15mA/100Ah, increasing to 30mA/100Ah over the life

Boost charge

2.75V/cell +/- 1%

Discharge Characteristics

Reference temperature 

27°C

Initial capacity

85% of C10 rated capacity

Depth of discharge (DoD)

Normally up to 80%

Deep  discharges

More than 80% DoD or discharges beyond final discharge

voltages (dependent on discharge rates) have to be avoided

Maintenance

Every  6 months - check cell voltage, specific gravity & temperature in the pilot cells

Every year – check voltage, specific gravity & temperature in all the cells

Operational data

Operational life

15+ years in stand-by operation in float application at 27°C

Water - refilling - interval

Once a year at 27°C

Cycles

1500 cycles at 80% DoD

Self-discharge

Approximately 3% per month at 27°C

Operational temperature

Best temperature range for use is 10 to 30°C standard IS 651

Standards

According to DIN 40 736 part1

Test according to

IEC 60896-11 and IS 1651:1991

Safety standards, ventilation

DIN EN 50 272-2

Product Specifications

Model	Capacity  at 10 hr rate to 1.85ECV	Overall Cell Dimensions in mm			Weight of Cell in Kgs (± 3%)		Approx Quantity of Acid at 1.2Sp. Gr (± 3%)
	AH	Length	Width	Height	Without  Acid	With Acid	Litres
M 100 THDP–S	100	105	208	420	7.90	11.20	2.65
M 200 THDP–S	200	105	208	420	12.20	17.20	4.05
M 250 THDP–S	250	126	208	420	14.60	20.80	5.00
M 300 THDP–S	300	147	208	420	17.20	24.30	5.75
M 350 THDP–S	350	126	208	535	18.90	26.90	6.45
M 400 THDP–S	400	147	208	535	22.20	31.50	7.50
M 450 THDP–S	450	168	208	535	25.20	36.10	8.80
M 600 THDP–S	600	147	208	710	31.90	44.80	10.40
M 800 THDP–S	800	215	193	710	44.20	61.30	13.80
M 1000 THDP–S	1000	215	235	710	52.30	74.50	17.90
M 1200 THDP–S	1200	215	277	710	62.10	88.00	20.90
M 1500 THDP–S	1500	215	277	855	80.40	114.30	27.35
M 2000 THDP–S	2000	215	400	815	102.50	151.50	39.50
M 2500 THDP–S	2500	215	490	815	129.80	193.00	50.95
M 3000 THDP–S	3000	215	580	815	159.40	234.50	60.55

Positive electrode 

Tubular – plate made with high pressure (150 bar) die cast spine Corrosion-resistant low antimony alloy (PbSb1.6SnSe).Using superior high tenacity polyester oxide holder to hold density controlled positive active material

Negative electrode 

Grid - plate in low antimony alloy with long - life expander material from best of manufacturers from Europe & USA

Separation

Low electrical resistance, no-oil, PVC micro porous separator from Amersil, Luxemburg

Electrolyte 

Sulphuric acid with a density of 1.200 kg/l as per Indian Standard & 1.240 kg/l as per international Practice

Container

High impact, transparent SAN (Styrene Acrylo Nitrile)

Lid

ABS in dark grey colour

Vent Plug

Ceramic Plugs

Pole Insert

M10 brass insertion

Connectors 

Thermoplastics elastomer insulated flexible copper bolted connectors having no exposed conducting surface

Connecting bolts

Plastics coated hex-head M10 steel bolt with reading point

Installation racks

Steel racks (with seismic condition compliant on request)

Cell Type

Cell Ht. upto top of cover
in mm

4 OPzS 200

365

5 OPzS 250

365

6 OPzS 300

365

5 OPzS 350

481

6 OPzS 420

481

7 OPzS 490

481

6 OPzS 600

656

8 OPzS 800

656

10 OPzS 1000

656

12 OPzS 1200

656

12 OPzS 1500

806

16 OPzS 2000

782

20 OPzS 2500

782

24 OPzS 3000

782