RAW POWER VRLA AGM Battery — 12V 28AH [12RP28VA] – ankker.com

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RAW POWER VRLA AGM Battery — 12V 28AH [12RP28VA]

RAW POWER VRLA AGM Battery — 12V 28AH [12RP28VA]

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Rated 5 out of 5

Designed floating charging service life: 8 years (25ºC)
Sealed and maintenance free operation
Safety valve installation for explosion proof
Low self-discharge characteristic
Wide operating temperature range from 0ºC~40ºC
Lead Aluminum calcium Tin alloy high energy, prevent corrosion

Designed floating charging service life: 8 years (25ºC)
Sealed and maintenance free operation
Safety valve installation for explosion proof
Low self-discharge characteristic
Wide operating temperature range from 0ºC~40ºC
Lead Aluminum calcium Tin alloy high energy, prevent corrosion

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Categories RAW POWER, VRLA AGM Battery

Nominal Voltage	12V
Nominal Capacity (20HR)	28AH
Length (L)	166±2mm
Width (W)	175±2mm
Height (H)	125±2mm
Total Height (TH)	125±2mm
Weight ±3%	Approx 7.60kg (16.75lbs)
Internal Resistance	≈11.8 mΩ
Standard Terminals	T04 (standard)

Rated Capacity
20 hour rate (1.40A)	28.00AH
10 hour rate (2.80A)	26.04AH
5 hour rate (4.75A)	23.00AH
27 minute rate (28A)	12.6AH
7 minute rate (84A)	9.80AH

Capacity affected by Temperature
40ºC (104ºF)	103%
25ºC (77ºF)	100%
0ºC (32ºF)	86%

Cycle Application

Limit initial current less than 8.4A.
Charge until battery voltage (under charge) reaches 14.1V to 14.4V at 25ºC (77ºF).
Hold at 14.1V to 14.4V until current drop to under 0.168A for at least 3 hours.
Temperature compensation coefficient of charging voltage is -30mV/ºC.

Standby Service

Hold battery across constant voltage source of 13.6 to 13.8 volts with current limit 8.4A continuously. When held at this voltage, the battery will seek its own current level and maintain itself in a fully charge status.
Temperature compensation coefficient of charging voltage is -18mV/ºC.

End Voltage (V)	Minute (M)					Hour (H)
End Voltage (V)	5	10	15	30	45	1	1.5	2	3	5	8	10	20
Constant Current Discharge Data Sheet (Amperes at 25ºC)
10.20	103.9	67.6	53.0	27.1	19.6	16.9	13.41	9.97	7.52	4.81	3.22	2.64	1.40
10.50	103.0	67.1	52.5	26.8	19.4	16.7	13.17	9.59	7.28	4.74	3.20	2.61	1.39
10.80	102.0	66.3	52.0	26.5	19.1	16.6	12.92	9.22	7.04	4.64	3.16	2.54	1.36

End Voltage (V)	Minute (M)					Hour (H)
End Voltage (V)	5	10	15	30	45	1	1.5	2	3	5	8	10	20
Constant Power Discharge Data Sheet (Watt at 25ºC)
10.20	1095	789	639	361	263	200	153	115	82.4	54.3	38.3	30.96	16.67
10.50	1049	763	620	354	257	197	151	114	80.5	53.7	37.9	30.49	16.44
10.80	994	735	600	343	251	193	149	112	79.2	53.1	37.6	29.99	16.20

Description
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Description

Designed floating charging service life: 8 years (25ºC)
Sealed and maintenance free operation
Safety valve installation for explosion proof
Low self-discharge characteristic
Wide operating temperature range from 0ºC~40ºC
Lead Aluminum calcium Tin alloy high energy, prevent corrosion

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