Lithium Replacement for Lead-Acid, AGM, and VRLA Batteries
Quick answer: LBC supplies LFP and NMC lithium battery packs, 12V–144V+, with a matched BMS on every pack, for OEMs in the United States, Canada and Mexico. Catalog programs start at 10 units; custom designs at 25. Lead times of weeks to months are confirmed in the quote.
OEMs and equipment builders replace lead-acid, AGM, and VRLA batteries with LFP lithium packs to change runtime, charging, and maintenance. A reliable replacement is engineered, not just swapped. LBC designs LFP lithium packs matched to your voltage, charger, BMS, and enclosure requirements. Catalog reference designs start at 10 units and custom programs at 25 units. LBC supplies volume OEM programs.
What makes a lithium pack compatible with a lead-acid system?
Matching the nominal voltage is not enough. A 48V-class lead-acid system and a 51.2V LFP pack, for example, sit in the same class but behave differently. Lithium holds voltage flatter through discharge, so older controllers, charge indicators, and chargers may misread state of charge unless they are configured for lithium. Review the complete system: battery, BMS, charger, controller, connectors, and compartment.
What should an OEM include in a replacement review?
- Voltage window. Record nominal voltage, maximum charge voltage, and the controller's cut-off behavior.
- Charger profile. Lead-acid chargers use profiles built for flooded, AGM, or gel batteries, including equalization and float. Lithium needs a lithium charge profile with equalization and float disabled, or a replacement charger. See the charger catalog.
- BMS limits and communication. Confirm charge and discharge limits, temperature limits, and any CAN or other communication your equipment expects. See BMS requirements.
- Current. Document continuous and peak current, including regenerative current if applicable.
- Connectors and terminals. Confirm connector type, current rating, and cable gauge.
- Compartment and weight. Record the dimensions and the old battery's weight. Lead-acid weight can act as counterweight, and lithium is often lighter. Check the equipment's minimum battery weight requirement.
- Duty cycle and temperature. Runtime, shifts, charging windows, and operating temperature all affect the design.
How should an OEM compare energy and amp-hours?
Amp-hour ratings do not map one-to-one across chemistries. Compare watt-hours (Wh = V × Ah) and the usable energy window your duty cycle needs. Capacity is set from the load profile, with reserve, temperature, and aging in mind. For a deeper comparison, read LiFePO4 vs lead-acid for industrial equipment.
Applications LBC supports
Replacement programs are common in AGV and material-handling equipment and telecom and critical backup. Browse voltage-class reference designs for 12V, 24V, and 48V systems, or consider replacing an existing battery supplier with a close reference design.
What to send for a replacement review
- Application and equipment model
- Photo of the old battery label and its weight
- Photo of the charger label
- Voltage window, continuous and peak load, and runtime
- Compartment dimensions and connector type
- Environment and compliance needs
- First-order quantity and annual volume
Get a Quote. LBC reviews your inputs before confirming a production path. Final performance, sourcing, pricing, and delivery commitments are confirmed for each program.
Converting a fleet? See lithium forklift battery packs and industrial lithium battery packs.
FAQ
Is an LFP pack a direct drop-in for a lead-acid battery?
Only when voltage, charger, BMS, connectors, and physical fit all match the equipment. Matching nominal voltage alone is not enough.
Can I use my existing lead-acid charger?
Only if it can run a lithium charge profile with equalization and float disabled, and the charger is confirmed compatible with the BMS. Otherwise, use a lithium charger.
What information does LBC need to review a replacement?
The application, voltage window, load, runtime, available space, old battery and charger labels, connectors, environment, compliance needs, first-order quantity, and annual volume.
What is the minimum order for a replacement program?
Catalog reference designs start at 10 units. Custom programs start at 25 units. LBC supplies volume OEM programs.