1. Non-Rechargeable vs. Rechargeable?

Non-Rechargeable batteries are also known as Primary cells. They are designed to be used once and discarded. They have a lower self-discharge rate compared to secondary cells and can be used for long term storage of power.

Rechargeable batteries are also known as Secondary cells. They are designed to be recharged and reused. They have a higher discharge rate compared to primary cells.

 2. Which battery chemistries does EVS Supply carry?

CHEMISTRY BRANDS WE SELL ENERGY DENSITY SHELF LIFE VOLTAGE Rechargeable
Lithium Thionyl Chloride (LTC) Tadiran
SAFT		 High 10 yrs. 3.6-4.1
Sealed Lead Acid (SLA) Power Sonic
Enersys		 Very Low 6 mo. 6/12
2 / 6 / 12
Nickel-Cadmium (NiCD) FDK,
Panasonic,
SAFT,
Vinnic
Varta 		Very Low 5 yrs. 1.2
Nickel-Metal Hydride (NiMH) FDK
PowerEx
SAFT
Varta
Vinnic 		Medium 5 yrs. 1.2
Alkaline Duracell
Energizer/Rayovac
Evergreen 		Medium 5 yrs. 1.5
Lithium Coin Panasonic
Renata
FDK		 High 10 yrs. 3
Silver Oxide Energizer
Renata		 High 5 yrs 1.6

3. What type of custom battery packs does EVS Supply assemble?

Non-Rechargeable battery packs with customer defined leads and connectors for all types of applications including: Aerospace, marine, metering, remote monitoring, CMC tool backup, oil/gas, medical, etc.

4. What are the considerations for use and handling of lithium primary batteries?

Abusive Condition Corrective Procedure
High-rate discharging or short-circuiting Low-capacity or low-rate batteries may be self-limiting
Electrical fusing, thermal protection
Limit current drain; apply battery properly
Forced discharge (cell reversal) Voltage cutoff
Use low-voltage batteries
Limit current drain
Special designs (“balanced” cell)
Use of diode in parallel across cell
Charging Prohibit charging
Diode protection to prevent or limit charging current
Overheating Limit current drain
Fusing, thermal cutoff, PTC devices
Design battery properly
Do not incinerate
Physical abuse Avoid opening, puncturing, or mutilating cells
Maintain battery integrity

David Linden, Thomas B. Reddy, eds. (2002). Handbook of Batteries (3rd ed.)
New York, NY: McGraw-Hill Books.

5. How does temperature affect batteries?

One of the most important factors of battery aging and performance is temperature.

20-25° C is the optimum battery temperature; Depending on the battery chemistry, at 30°C or higher, the battery design life can diminish by as much as half.

Lithium-ion, NiCD, NiMH Batteries operate best between 20°C – 60°C. They are designed for a wide spectrum of environmental extremes.

6. Are battery products recyclable?

Per Texas law, rechargeable batteries must be recycled.

EVS Supply is committed to the recycling and disposal efforts through the Rechargeable Battery Recycling Corporation (RBRC).