Optima Yellow Top YTS 5.5 (8051-187) (BCI D31) (YTS5.5 AGM)

Manufacturer: Optima Yellow
Part Number: Optima Yellow Top YTS 5.5
Weight: 26.50kg
Dimensions: 325.00mm (L)
165.00mm (W)
238.00mm (H)
Volt: 12
Capacity (AH): 75
Cold Cranking (EN): 975
Terminal Layout: Centre Post
Hold Down: B3
Battery Type: AGM
Guarantee: 1 Year
Application: Deep Cycle / Engine Start

Price excludes VAT


Optima Yellow Top YTS 5.5 (8051-187) (BCI D31) (YTS5.5 AGM)

OPTIMA® YELLOWTOP® D31A Ultra high-performance SPIRALCELL TECHNOLOGY® AGM (absorbent glass mat) dual-purpose (deep-cycle and starting) battery. OPTIMA® YELLOWTOP® batteries have three times the cycling capability (rechargeability) with ultimate cranking power for your auto, car or truck to outperform traditional batteries. Perfect for powering heavy electrical loads, including winches, audio systems, inverters, and other demanding vehicle accessories and electronics. Lower internal resistance provides more efficient power output and faster recharges.

The OPTIMA® model number for this battery is D31A. If you are replacing an OPTIMA® battery you already have, this model is the same as batteries marked 8051-160, 9051-160, 27994, D31A-1125, YEL31A, SC31DA, or N9931AYEL.

  • Deep-cycle and cranking power
  • Up to two times longer life
  • More than 15 times the vibration resistance
  • Completely spillproof, mountable in virtually any position
  • Maintenance-free
  • Faster recharging
  • Optimal starting power
  • 300+ discharge/recharge cycles

Recommended Charging Information

Alternator: 13.65 to 15.0 volts
Battery Charger: 13.8 to 15.0 volts; 10 amps maximum; 6-12 hours approximate
Float Charge: 13.2 to 13.8 volts; 1 amp maximum (indefinite time at lower voltages)
Rapid Recharge (Constant voltage charger): Maximum voltage 15.6 volts. No current limit as long as battery temperature remains below 125°F (51.7°C). Charge until current drops below 1 amp.
Cyclic or Series String Applications::

14.7 volts. No current limit as long as battery temperature remains below 125°F (51.7°C).  When current falls below 1 amp, finish with 2 amp constant current for 1 hour.
All limits must be strictly adhered to.