High-Performance Lead Acid (SLA / VRLA) Battery Chargers
Cell-Con provides safe, efficient, and reliable Lead Acid battery charger solutions specifically engineered for Sealed Lead Acid (SLA) and Valve-Regulated Lead Acid (VRLA) batteries. Utilizing an advanced 3-step automatic charging algorithm, our chargers optimize battery health, maximize service life, and prevent thermal degradation or overcharging across demanding industrial, medical, and commercial applications.
Unlike conventional taper chargers that reduce charge currents too early, Cell-Con SLA battery chargers maintain a regulated constant current during initial charging. This smart 3-stage power management ensures rapid energy restoration while maintaining absolute system safety for original equipment manufacturers (OEMs) globally.
Understanding the 3-Stage Smart Charging Algorithm
Our smart charging topology is designed in three controlled phases to guarantee maximum energy uptake and maintenance without stressing battery chemistry:
Constant Current (Bulk)
Fills 80% to 90% of full battery capacity at a controlled maximum current rate, ensuring fast and safe bulk charging.
Constant Voltage (Absorption)
Holds maximum voltage until low-level current detection or precision timer expiration fills the remaining 10% to 20% capacity.
Float Charge Mode (Maintenance)
Reduces output voltage to a safe standby level. The battery can remain connected indefinitely without risk of overcharge or damage.
Standard Product Lineup & Engineering Matrix
Browse our comprehensive line of standard Lead Acid battery chargers below. Each series can be customized with custom DC output plugs, branding, and specialized enclosure configurations.
| Series # | Wattage | Charge Rate | Capacity Range | Input Voltage | Configuration | Dimensions (L x W x H) |
|---|---|---|---|---|---|---|
| 452240-S | 16W | 500mA – 1.3A | 1.5Ah – 12Ah | 90-264VAC | Desktop | 3.5” x 1.75” x 1.75” |
| 452241-S | 16W | 500mA – 1.3A | 1.5Ah – 12Ah | 90-264VAC | Wall Plug-in | 4.0” x 1.75” x 1.50” |
| 452541-S | 35W | 1.2A – 2.2A | 4.5Ah – 60Ah | 90-264VAC | Desktop | 4.25” x 2.64” x 1.50” |
| 452544-S | 35W | 1.2A – 2.7A | 10Ah – 25Ah | 10-30VDC | Desktop (DC Input) | 4.25” x 2.64” x 1.50” |
| 452440-S | 60W | 2.5A – 4.0A | 20Ah – 200Ah | 90-264VAC | Desktop | 5.31” x 3.15” x 1.73” |
| 453240-S | 103W | 3.5A – 7.0A | 60Ah – 150Ah | 110VAC | Desktop | 6.25” x 3.25” x 1.75” |
| 459740-S | 120W | 2.5A – 10.0A | 40Ah – 400Ah | 110VAC | Desktop | 7.25” x 6.75” x 2.50” |
| 452745-S | 300W | 10.0A – 20.0A | 100Ah – 1000Ah | 120VAC | High-Power Desktop | 8.50” x 7.35” x 5.50” |
| 453540-S | 300W | 10.0A – 20.0A | 100Ah – 1000Ah | 110-120VAC | High-Power Desktop | 8.27” x 4.45” x 2.09” |
| 453743-S | 16W | 560mA – 1.5A | 1.5Ah – 15Ah | 90-264VAC | WPI or Desktop | 4.25” x 2.00” x 1.12” |
| 453546-S | 28W | 1.0A – 2.0A | 4.0Ah – 60Ah | 90-264VAC | WPI or Desktop | 4.88” x 2.00” x 1.46” |
Medical & Industrial OEM Customization
Cell-Con provides customized charger modifications for high-reliability medical equipment, defense devices, industrial automation, and utility power systems. Our engineering capabilities include custom voltage set-points, tailored charging curves, specialized output connectors (XLR, Anderson, Molex, Barrel), thermal protection logic, and custom ruggedized enclosures certified to international medical safety standard ANSI/AAMI ES60601-1 / IEC 60601-1.
Need a Custom SLA Battery Charger Engineering Solution?
Talk directly with our application engineers in Pennsylvania, USA. We provide custom power specifications, prototype samples, and compliance support for global OEM buyers.
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