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MK Battery ES20-12C
Cat. No. MK-ES20-12C

Gel/Sealed Lead Acid Batteries
When you think quality Deep Cycle batteries, think of MK Battery. Our premium Gel sealed battery products have been the number one choice for years by the leading wheelchair manufacturers. When it comes to performance and quality, the MK Gel is the standard.

Deep Cycle: Premium sealed batteries capable of up to 1000 cycles (50% DOD) as fully tested by independent laboratories.
Gelled/Suspended Electrolyte: No liquid of any kind; battery is completely sealed. Safe in any position (except upside down).
Maintenance Free: Water is never added; low liability
Travel & Ship Easily: MK batteries are F.A.A, IATA, and UPS approved. Others may not be.
Safety: Sealed batteries have a special re-sealing vent system that prevents excessive internal pressure; thus they cannot explode under normal conditions.

Benefits of an Advanced Sealed Gel or AGM Battery
Battery technology has changed tremendously in just the past few years. In fact, size-for-size, MK's advanced sealed Gel and AGM batteries deliver more power and more consistent performance than other types and brands of batteries used for mobility. MK's performance-proven sealed Gel and AGM designs:

Can last longer than other batteries due to high quality manufacturing standards.
Are A-67 DOT/FAA-IATA Standard approved for airline and public transportation.
Do not need to be fully discharged before recharging.
Do not develop a "memory" that limits their recharging.
Will not automatically discharge if put on concrete.

Nominal Voltage (V) 12V

Nominal Capacity
20hour rate (1.0A to 10.50V ) 20Ah
10hour rate ( 1.9A to 10.50V ) 19Ah
5hour rate ( 3.4A to 10.50V ) 17Ah

Weight 14.55 Lbs. (6.6 kg)

Internal Resistance (Fully Charged Battery) <9 mÙ
Maximum Discharge Current for
5 seconds : 300A
Maximum Charge Current (A) 6.0A

Ambient Temperature
Charge 0°C (32°F) to 40°C (104°F)
Discharge -20°C (-4°F) to 50°C (122°F)
Storage -20°C (-4°F) to 40°C (104°F)
Charging Methods at 20°C (68°F)

Cycle use:
Charging Voltage 14.4 to 15.0V
Maximum Charging Current (CA) 0.3

Standby use :
Float Charging Voltage 13.50 to 13.80V
Maximum Charging Current (CA) 0.3

Life expectancy :
Cycle Use :
100% depth of discharge 300 cycles
50% depth of discharge 600 cycles
30% depth of discharge 1500 cycles

Case Material ABS

Terminal B1 (Nut & Bolt)



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