The Tenergy 12V 4.5Ah SLA (Sealed Lead Acid) battery is a maintenance-free, rechargeable power source designed for applications requiring compact energy storage. With a sealed design to prevent leaks, deep-cycle capabilities, and a lifespan of 3–5 years, it’s ideal for backup systems, medical devices, security alarms, and small electronics. Its stable voltage output and safety features make it a dependable choice for continuous use.
How to Prevent Lithium-Ion Battery Fires and Explosions
What Are the Technical Specifications of the Tenergy 12V 4.5Ah SLA Battery?
The Tenergy 12V 4.5Ah SLA battery operates at 12 volts with a 4.5 amp-hour capacity. It weighs 3.3 lbs (1.5 kg), measures 3.94 x 1.57 x 2.76 inches, and uses lead-acid chemistry. It delivers 150–200 deep discharge cycles (80% depth) and performs optimally between -4°F to 122°F (-20°C to 50°C). The AGM (Absorbent Glass Mat) design ensures spill-proof operation.
How Does the Tenergy 12V 4.5Ah SLA Battery Compare to Lithium-Ion Alternatives?
Unlike lithium-ion batteries, the Tenergy SLA battery is heavier and has a shorter lifespan but is more cost-effective upfront. It’s safer for high-temperature environments and doesn’t require complex management systems. However, lithium-ion offers higher energy density, lighter weight, and longer cycle life, making it better for portable devices needing frequent recharging.
For applications like emergency lighting or stationary security systems, the Tenergy SLA’s resistance to thermal runaway provides an added layer of safety. While lithium-ion batteries excel in energy density (150-200 Wh/kg vs. SLA’s 30-50 Wh/kg), SLA batteries maintain voltage stability during prolonged discharges. This makes them preferable for devices requiring steady power over time, such as medical equipment. Cost differences are significant: a comparable lithium-ion battery costs 3-4 times more upfront, though its longer lifespan may offset this for high-cycle applications.
| Feature | Tenergy SLA | Lithium-Ion |
|---|---|---|
| Cycle Life | 200 cycles | 500+ cycles |
| Weight | 3.3 lbs | 1.1 lbs |
| Cost per kWh | $150 | $400 |
Where Is the Tenergy 12V 4.5Ah SLA Battery Commonly Used?
This battery powers devices like emergency lighting, CCTV cameras, mobility scooters, and portable printers. It’s also used in children’s ride-on toys, small UPS systems, and medical equipment such as CPAP machines. Its ability to deliver steady power in standby applications makes it popular in security and backup systems.
Why Choose a Sealed Lead Acid Design Over Flooded Batteries?
Sealed Lead Acid (SLA) batteries, like Tenergy’s, are maintenance-free, leak-proof, and can operate in any orientation. They don’t require water refilling, unlike flooded batteries, and emit minimal gas during charging. This makes them safer for indoor use and reduces long-term upkeep costs, though they have a slightly higher initial price.
What Safety Features Does the Tenergy 12V 4.5Ah SLA Battery Offer?
The battery includes overcharge protection, short-circuit prevention, and a flame-retardant casing. Its valve-regulated design controls internal pressure, while the AGM separator minimizes acid stratification. These features reduce risks of explosions, leaks, and thermal runaway, ensuring compliance with UL and CE safety standards.
The flame-retardant ABS casing can withstand temperatures up to 266°F (130°C), providing critical protection in malfunction scenarios. The pressure relief valves activate at 7-10 psi to vent excess gas safely, preventing case rupture. Additionally, the recombinant design recombines 99% of internal hydrogen and oxygen gases into water, eliminating the need for venting in most environments. These features make it suitable for use near sensitive electronics or in confined spaces like server racks.
| Safety Mechanism | Function |
|---|---|
| AGM Separator | Immobilizes electrolyte to prevent spills |
| VRLA Design | Controls gas recombination |
| Terminal Insulation | Prevents accidental short circuits |
How to Properly Maintain the Tenergy 12V 4.5Ah SLA Battery?
Store the battery at 40%–80% charge in a cool, dry place. Avoid deep discharges below 50% capacity. Use a compatible charger (13.5–13.8V for standby, 14.4–14.8V for cyclic) and clean terminals regularly. Recharge every 3–6 months during storage to prevent sulfation, which can permanently reduce capacity.
Can the Tenergy 12V 4.5Ah SLA Battery Be Recycled?
Yes, SLA batteries are 99% recyclable. Lead plates and polypropylene cases are reclaimed for new batteries. Return used Tenergy batteries to certified recycling centers or retailers participating in lead-acid recycling programs. Never dispose of SLA batteries in household trash due to lead content.
What Are the Environmental Impacts of Using SLA Batteries?
While SLA batteries contain lead and sulfuric acid, their high recyclability mitigates environmental harm. Proper recycling prevents soil and water contamination. However, energy-intensive lead smelting contributes to carbon emissions. Tenergy’s adherence to RoHS standards ensures reduced hazardous substances like mercury and cadmium.
How Cost-Effective Is the Tenergy 12V 4.5Ah SLA Battery Over Time?
At $15–$25 per unit, the Tenergy SLA battery has a lower upfront cost than lithium-ion. However, its shorter lifespan (3–5 years vs. 8–10 years for Li-ion) increases long-term replacement costs. For applications with infrequent cycling, though, its durability and minimal maintenance make it economically viable.
“Tenergy’s 12V 4.5Ah SLA battery strikes a balance between affordability and reliability,” says a senior energy storage engineer. “Its AGM technology ensures safety in sensitive environments, and the deep-cycle capability is impressive for its class. While not as advanced as lithium, it remains a go-to for budget-conscious projects needing stable power.”
FAQ
- Q: Can I use the Tenergy 12V 4.5Ah battery in a car?
- A: No—it’s designed for deep-cycle applications, not the high cranking amps required for automotive starters.
- Q: How long does it take to charge this battery?
- A: With a 1A charger, it takes 5–7 hours. A 0.5A charger requires 10–14 hours.
- Q: Is it safe to use indoors?
- A: Yes—the sealed design and minimal gas emission make it suitable for indoor installations.