
PHYSICAL SPECIFICATION
Nominal Voltage Nominal Capacity (20HR)				12V 20Ah
Dimension		Length Width Container Height Total Height		181±1mm （7.13 inches) 76±1mm (2.99 inches) 166±1mm (6.54 inches) 166±1mm (6.54 inches)
Weight				Approx. 6Kg ±3%（13.2lbs）
Standard Terminal				Bolt & nuts terminal Bolt Type:M5
						Shimastu NPC series Deep Cycle Batteries are deep-cycle battery designed to be regularly deeply discharged using most of its capacity,its the most common battery used for solar off-grid and hybrid energy storage, as well as many other applications. Features: 1.Wide protected operation temperature ranges of -20℃ ( -4℉) to 50℃ ( 122℉). 2. Monthly self-discharge rate below 2% at 25℃ ( 77℉) . 3. The battery has perfect performance in maintenance-free, after 12 months, its storage still can reach to 65%, which is high cost-effective solutions for solar, wind power systems and other renewable energy systems 4.Special polar plate design, which ensures a long cycle life up to 8 years in floating service.
ELECTRICAL SPECIFICATION
Characteristics						Discharge curves @ 25℃ (77 °F)
Capacity			20 hour rate (1.0A) 10 hour rate (1.87A) 5 hour rate (3.4A) 3 hour rate (5A) 1 hour rate (10.58A)		20Ah 19Ah 17Ah 15Ah 10.6Ah
Capacity affected by temperature			40℃ （104 ⁰F） 25℃ （77 ⁰F） 0℃ （32 ⁰F）		102% 100% 85%
Max Discharge Current			200A(5 Sec)
Short Circuit Current			800A
Internal Resistance			Full charged battery (25℃,77 ⁰F) 13mΩ
Designed life			≥650 Cycles @ 50% D.O.D(25℃)
Constant Voltage Charge	Cycle		Initial Charging Current less than 6A Voltage 7.20~7.50V at 25℃ (77 ⁰F ) Temperature Coefficient –30mV/℃
	Standby		No limit on Initial Charging Current Voltage 6.75~6.90V at 25℃ (77 ⁰F ) Temperature Coefficient –20mV/℃

CONSTANT CURRENT DISCHARGE RATING A@25℃
F.V/TIME	5MIN	10MIN	15MIN	30MIN	1HR	3HR	5HR	10HR	20HR
1.60V	76.03	53.74	38.84	22.31	12.24	5.640	3.772	1.973	1.040
1.65V	70.71	50.78	37.14	21.42	11.80	5.466	3.674	1.947	1.024
1.70V	63.79	46.75	34.78	20.47	11.41	5.318	3.579	1.919	1.012
1.75V	57.16	42.79	32.36	19.57	11.00	5.159	3.489	1.893	1.000
1.80V	50.19	38.73	29.89	18.70	10.58	4.999	3.398	1.870	0.990
CONSTANT POWER DISCHARGE RATING WATT PER CELL@25℃
F.V/TIME	5MIN	10MIN	15MIN	30MIN	1HR	3HR	5HR	10HR	20HR
1.60V	126.0	91.34	67.91	40.53	23.01	10.79	7.287	3.884	2.054
1.65V	118.6	87.98	65.89	39.31	22.34	10.50	7.124	3.842	2.025
1.70V	109.4	82.48	62.64	37.95	21.75	10.26	6.963	3.790	2.003
1.75V	100.2	76.86	59.13	36.65	21.09	10.00	6.811	3.744	1.981
1.80V	89.86	70.79	55.37	35.38	20.40	9.729	6.659	3.701	1.964

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This 12v 20ah agm deep cycle battery can meet your power demand well. It is a maintenance-free sealed lead-acid battery with the characteristics of small self-discharge and good deep discharge performance. This kind of deep cycle battery is specially designed to provide consistent and stable power for a long time, which is very suitable for applications that need long-term continuous use. At the same time, the battery has a high low-temperature start-up, which can be used in the temperature range of-20 C-60 C, and is suitable for northern mountain areas. It can withstand multiple charging and discharging cycles without affecting performance, and is suitable for solar energy storage, ships, RVs and electric vehicles.

Features

The 12v 20ah agm deep cycle battery adopts a unique deep cycle design, filled with a large number of thick plates and high-density active substances, which can be charged and discharged more times, making it have a longer service life. Secondly, it is small and compact in appearance, has a durable structure, can provide anti-vibration protection, provides good seismic performance, and can be used safely in various harsh environments. In addition, the battery has a high capacity ratio, which can ensure a stable and consistent power supply and can run uninterrupted in various applications.

Application

Its application range is wider than ordinary lead-acid batteries, and it is very suitable for solar energy, standby power supply, renewable energy and other systems, and is widely used in recreational vehicles, marine electronic equipment and standby power supply.