Custom LiFePO4 Battery Packs

Start points: the documented 12V/24V range

A custom LiFePO4 battery pack starts from the datasheet range, not from a blank sheet. Our documented builds cover 12V and 24V classes — 100Ah, 120Ah and 200Ah — in PVC and steel cases. That gives your project a verified baseline for cell selection, case format and internal layout before any customization begins.

From there, we adapt the enclosure, terminals, leads and BMS to your equipment. The starting point defines what is proven; the customization defines what your device needs. Both are settled in the specification before production.

If your application currently runs on lead-acid, the same 12V and 24V classes are the natural entry point — see our lead-acid replacement batteries for the drop-in formats we document. For projects that need a different voltage class outside this range, the series/parallel configuration is where the discussion starts.

What can be customized: enclosure, terminals, BMS, communication

Customization on a LiFePO4 pack is not one option — it is a set of decisions that interact. The scope we evaluate per project covers:

• Cell selection. Cell type and grade are matched to your continuous and peak current profile, not picked from a default list.
• Pack voltage and capacity via series/parallel configuration, checked against your equipment's input window.
• Protection and battery management circuitry, including charge/discharge management and SOC/SOH monitoring options. The BMS is specified with the pack, not added afterwards.
• Thermal considerations for the expected operating environment and duty cycle.
• Enclosure forms: soft-pack structures, heat-shrink covering and injection-molded housings, alongside the PVC and steel cases in the documented range.
• Communication options: Bluetooth, WiFi, CAN bus and RS485, where your system needs to read pack data.

Terminals and leads are specified with the enclosure — stud type, orientation and cable gauge follow your equipment's connection point and installation space.

Options are evaluated per project and confirmed in the specification. Not every model carries every option; the specification is the document that fixes what your pack includes.

Parallel and series combinations — what to confirm

Series count sets pack voltage, parallel count sets capacity. Whether and how units can be paralleled depends on the model and its BMS — there is no single answer that applies across the range.

For a parallel build, confirm these points with us before the specification is written:

1. 1. The BMS in each unit. Paralleling behavior is a BMS function. Units with different BMS designs are not interchangeable in a parallel bank.
2. 2. The model and its documented configuration. Combinations are confirmed per model and project, so the starting model matters.
3. 3. Your load profile. Parallel banks share current; the division between units follows from the BMS and wiring, and is checked against your discharge profile.

The same discipline applies in series: voltage class, BMS limits and charger compatibility are confirmed together. Bring your target voltage, capacity and current profile, and we will confirm which configuration the model supports.

To move from evaluation to a written specification, start a custom LiFePO4 project with your equipment details. If you are still comparing chemistries, our LiFePO4 batteries page covers the platform this range is built on, and the 24V 100Ah LiFePO4 battery shows a documented build in the 24V class.

Frequently Asked Questions

Can you customize LiFePO4 packs for our enclosure and terminals?

Yes. Custom builds start from the documented 12V/24V range in PVC and steel cases, and the enclosure, terminals and leads are adapted to your equipment. Enclosure forms include soft-pack structures, heat-shrink covering and injection-molded housings. Terminals and leads are specified with the enclosure so the pack fits your installation space and connection point. All options are evaluated per project and confirmed in the specification.

What capacities can be combined in parallel?

Parallel combinations depend on the model and its BMS, so they are confirmed per model and project rather than quoted as a fixed rule. The documented range covers 12V and 24V classes at 100Ah, 120Ah and 200Ah, and the BMS in each unit governs how units behave in a bank. Tell us the model you are considering and your target capacity, and we will confirm the combination it supports.