Total Power Solutions
Our catalogues

Our catalogues

German    English    French
Battery Heater Mats

Battery Heater Mats

Extends Battery Runtime in Cold Weather

Battery Heater Mats
Data sheet
Source of supply

Alpha's battery heater mats are designed with safety and effi ciency in mind. Alpha's battery heater mats are a low-cost way of keeping backup batteries operating at their optimal temperature, maintaining battery backup performance at >70% of nominal levels at temperatures below 32°F/0°C. The heater mats' insulated bottoms ensure that energy is directed to the batteries and not wasted heating the enclosure. Their durable polyester outer shells protect the heating elements from damage; their redundant thermal control protection ensures against overheating; and their fused power input protects against shorts. Alpha battery heater mats are a smart addition to any backup power system.

  • Durable polyester construction
  • Sealed on-mat electronics for maximum protection
  • On-mat thermal switch and thermal fuse for redundant safety
  • Insulated design directs heat to the batteries not the enclosure for a 30%
  • reduction in power consumption
  • Piggyback plug standard on 120V models

Variants Technical data

Stand Alone Heater Mats
Model: BHM-IX3-120/BHM-IX3-240 BHM-2X2-120/BHM-2X2-240 BHM-IX6-120/BHM-1X6-240 BHM-PN48-120/BHM-PN48-240
Part Number: 189-062-10/189-062-11 189-031-10/189-031-10 189-072-10/189-072-11


Length (in/mm):

21.00/533 27/686 27.75/705 21/534
Width (in/mm): 13.00/330 13.5/343 15.25/387 14.5/368


140 180 215 198
Heating Density: 0.50W/in2 0.50W/in2 0.50W/in2 0.50W/in2
Battery Type: Case 27/31 Case 27/31 15.5” Front Terminal Case 27/31
Batteries/Mat: 3 4 6 4
Enclosure: PME, PWE-3, PWE-6,
PWE-9, UPE-3, UPE-6, PN-3, PN-4, UPE-M3/M6,
PWE-4, PWE-8, UPE-4,
PWE-6FT PN-4, PN-3

Technische Spezifikationen
VRLA Battery Efficiency VS Temperature and Discharge Rate 
Battery performance is set for a normal room ambient temperature of 25°C/77°F. In outdoor installations, as temperatures drop the batteries lose the ability to perform the chemical reactions necessary to provide backup. For example, a battery string that provides 2 hours backup at room temperatures will only provide 1 hr 36 min (80%) backup at 0°C/32°F. As temperatures approach –40°C the chemical reaction virtually ceases and no backup can be expected. Battery heater mats are low-wattage heating pads designed to keep the core battery temperature at a level that will maintain at least 70% capacity at -30°C. Battery heater mats maintain battery backup performance in areas where lower temperatures are common.
All Mats
Line Cord Thermostat  
Turn on Temp: 5 deg C
Turn off Temp: 15 deg C
Mat Mounted Thermostat  
Over Temp Off: 50 deg C
Turn Back on: 40 deg C
Thermal Fuse Rating: 85 deg C
Optional Line Cord Thermostat  
Turn on Temp: 0 deg C
Turn off Temp: 10 deg C