FAQ / Tech Information

FAQ

Compare to Nickel Cadmium (NiCd)

Disadvantages of Nickel Cadmium (NiCd) include:
  • High rate of self-discharge
  • Cadmium is highly toxic
  • Environmental recycling issues
  • Memory effect is one of the biggest disadvantages to using NiCd

Compare Lithium to Nickel Metal Hydride (NiMH)

Commonly used in starter batteries for internal combustion engine (ICE) vehicles Lead Acid is normally a low-cost secondary battery, composed of a lead-dioxide cathode, a sponge metallic lead anode and a sulphuric acid solution electrolyte. The heavy metal element makes lead acid batteries toxic and improper disposal can be hazardous to the environment.

Side effects of Nickel Metal Hydride (NiMH) batteries include:
  • Poor charge retention
  • Memory effect
  • Insufficient and decreasing operating time
  • Short battery life
  • High rate of self discharge

Compared to Lead Acid

Disadvantages of lead acid batteries include:
  • Failure between several hundred and 2,000 cycles
  • Comparatively low energy density
  • Long charge time
  • Careful maintenance requirements

Sodium (Na-NiCl2)

When not in use Sodium (Na-NiCl2) batteries typically require to be left on charge, in order to be available for use when needed.

If shut down, the reheating process lasts 24 hours, and then a normal charge process of 6-8 hours is required for a full charge. Inefficiency due to energy consumption when not in use.


FAQ II - Lithium Power's Roomba Replacement Battery

Why is there a need?

  • Current market for iRobot Roomba batteries all use NiMH or NiCd technology
  • Nickel-metal hydride and Nickle-cadmium batteries are known for a high rate of self-discharge (over 25% a month)
  • Based on customer reviews, these batteries provide an insufficient and decreasing operating time and battery life after 6 months to 1 year of use
  • Memory effect
  • iRobot only offers 6 months of warranty on its batteries

We offer Lithium batteries

  • Lithium batteries are experiencing an increase in popularity with portable electronics and 3C products
  • Low self-discharge rate (1% a month)
  • No memory effect
  • Longer operating times and lasting battery life
  • Unnecessary to charge battery for 16 hours before first use or when not in use to maintain it
  • Will not be damaged through long transportation or storage time

Our Solution

  • First lithium battery available for Roomba 500, 600, 700 and 880 series
  • Fully compatible with original charger using safeguarded built-in smart charging CC, CV circuit; no error messages
  • Capacity 4400 mAH (46% higher than the original 3000mAH)
  • 56% longer operating time than the original battery (varies between models)
  • Proprietary battery balancing technology extends the battery life of the LiNMC power cells; Battery pack remains fully functional after 800 cycles
  • Safe, reliable, quality guaranteed
  • Built-in over-charge, over-discharge, over-voltage, over-current, and overtemperature protection circuit
  • Battery cell manufacturing and pack assembly all in Taiwan
  • One year warranty
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