Originally designed and developed in 1992 for the military, Bolt Ultra Batteries deliver a much higher overall performance than lead-acid batteries. Utilizing a patented, proprietary electrolyte of liquid low-sodium silicate compound of ammonia sulfate, sodium carbonate and water, the Bolt Ultra Battery has successfully overcome the drawbacks of lead-acid batteries used since the 1970’s. These drawbacks include acid corrosion, acid mist pollution, low energy & power density, and short life span. The newly designed neutral electrolyte does not corrode the electrodes, hence prolonging the batteries cycle life. The overall construction of the battery is very similar to lead-acid batteries that are on the market, utilizing a lead plate that the electrolyte reacts with. This makes replacing batteries with this technology very simple.
Due to their high temperature performance and fast charging capability, Bolt Ultra Batteries also have a universally recognized edge over commonly used lead-acid batteries. VRLA (valve regulated lead- acid) batteries in general lose a considerable amount of capacity as the ambient temperature around the battery falls. With silicate batteries, they continue to function well in very cold or freezing environments without the need for external battery warmers or warm-up time. They are also functional at full capacity at very high temperatures where most VRLA batteries lose capacity due to dry out and lithium ion batteries become unstable, requiring vast amounts of air conditioning to cool them.
For fast charging capability, Bolt Ultra Batteries can be recharged to 90% capacity within 60 minutes with a high current charger. Other advantages include small internal resistance (reducing heat) and low self-discharge rate, where most VRLA batteries lose a considerable amount of capacity after just six months. Bolt Ultra Batteries can sit uncharged for two years with minimal adverse effects. There is also no off-gassing or temperature rise during charging and operation; therefore, isolation is not required for gas emission, saving on construction costs in many applications.
For renewable energy applications, utilizing programmed set-points in the charge controller for VRLA or Gel batteries will sufficiently charge the batteries. You can consistently bring the batteries down to a 50% DoD, giving a little added capacity to the rule of thumb with most Gel or AGM where you don't want to drop below 30%. Because of the low internal resistance, it eliminates the need for a BTS (battery temperature sensor) within the battery enclosure, further decreasing costs for additional components. One of the greatest benefits in using these batteries comes out of the silicate compound electrolyte’s properties at end of life. Because the battery is non-hazardous, the PH neutral solution consisting of ammonium sulfate can actually be used as a fertilizer. The recycling of the lead becomes much easier and environmentally sound because the electrolyte does not degrade the plate and create toxic lead dust.
Introduction
- Silicate-salt compound “world patent protected electrolyte”
- Advanced green technology: no acid mist, non-corrosive and non- explosive
- Superior performance in extreme high and low temperatures
General Features
- Non-corrosive plates, electrodes, joints, and connections—allow battery a longer lifespan while retaining charging cycles
- Functions in extreme temperatures between -40°C and +70°C
- Performs extremely well in warm climates. The VRLA battery loses approximately 50% of its cycles for every 8°c increase in temperatures exceeding 25°. The Bolt Ultra Battery loses approximately 10% in the same application.
- Up to 2200 charging cycles when using 50% or less discharge. The battery can be 100% fully discharged without damaging the battery, however, it is recommended that it is charged immediately after high discharge to prolong the battery life and save charging cycles.
- Self-discharge rate is approximately 25% in two years when stored at ambient temperatures of 25°c
- 50% higher specific energy density than the VRLA battery
- Low internal resistance of 2Ω to 5Ω milliohm compared to 25Ω milliohm 12v lead acid battery
- Exceeds international storage capacity standards by 1.75 times and international recharge acceptance capacity standards by 2.68 times
- No separate enclosures, ventilation, or cooling systems required -- saving on installations, maintenance, and energy costs
- Lifespan up to 15 years: 4500 - 5000 cycles in telecom standby applications
Battery Charging
- Due to the special capabilities of the Bolt Ultra Battery, constant current charging is recommended to prolong the life of the battery. However, since the charging ability of the Bolt Ultra is quite strong, it can adapt to constant voltage or constant current charging with minimal effect.
- When float charging, the highest recommended acceptable current is 0.6c. The recommended float charge voltage per cell is 2.27v at 25°c. When using constant current charging, the recommended voltage per cell is 2.35v; that will fully charge the battery in three hours.
- The Bolt Ultra has fast charge capability and can be charged to 90% capacity in 60 minutes at 3c - 14.4v.
- When charging with an ordinary lead acid battery charger with lower charging voltage, the Bolt Ultra Battery may not become charged to full capacity. Chargers are available to charge to the maximum charging capacity.
Battery Discharging
- Due to the special capabilities of the Bolt Ultra Battery, constant current discharging is recommended to prolong the life of the battery. However, since the discharging ability of the Bolt Ultra is strong, it can adapt to constant voltage or constant current with minimal effect.
- Under normal circumstances, charging and discharging ratio of 1:0.3 is recommended. However, with high current charging and discharging, the ratio can be shifted to 1:1.
- Bolt Ultra can withstand high discharge to 100% with no damage to the battery, however, the manufacturer advises the end user to charge the battery immediately after high discharge to prolong the battery life and retain charging cycles. The manufacturer suggests not exceeding 90% discharge for a longer battery life.
Bolt Ultra Superior Performance Battery
Rewewables
- Solar, Wind, Hydro
- Grid-tied Back-Up
- Time of Use, Peak Load Shaving
- Off-Grid and Micro-Grid
- Remote low-maintenance sites
Motive Transport Industries
- Golf Carts, Electric Cars, Scooters, Motorcycles
- Starting Batteries
- Forklifts & Industrial
- Railroad & Locomotive
- Airline Ground Support
- Recreational Vehicles, ATV, Trucks & Buses
- Marine
Reserve Power
- Telecom, CATV
- UPS, Data Centers, Computer Networks & Servers
- Marine & Power Stations
- Transportation Signaling
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