A 48V lithium battery charger charges a 48V nominal pack — most commonly 16-series LiFePO4 (15.2V nominal per 4S block, 58.4V absorption) or 13-series Li-ion (54.6V absorption). Picking the right profile protects the pack and maximizes cycle life.
48V LiFePO4 vs 48V Li-ion
The single most common mistake is assuming "48V" is one number. A 48V LiFePO4 charger tops at ~58.4V; a 48V Li-ion (13S) charger tops at ~54.6V. Mixing them damages cells.
| Pack type | Series | Absorption | Typical current |
|---|---|---|---|
| 48V LiFePO4 | 16S | 58.4V | 5–30A |
| 48V Li-ion | 13S | 54.6V | 3–10A |
| 48V Lead-acid | — | ~59V | varies |
Where 48V is used
Golf carts, low-speed EVs, solar storage (ESS), floor cleaners and many AGVs run on 48V. See 48V-class chargers or talk to JUXON about a custom 48V OEM unit.
Sizing current
For a 100Ah 48V LiFePO4 pack, 0.2C = 20A, 0.5C = 50A. Faster is possible with thermal headroom. Confirm your BMS continuous charge limit before specifying.
FAQ
Is 48V LiFePO4 the same as 48V Li-ion?
No. They share the "48V" label but use different absorption voltages (58.4V vs 54.6V). Always match the charger to the cell chemistry.
Can I use a 48V charger for a 51.2V pack?
A 51.2V pack is a 16S LiFePO4 pack; its charger absorption is 58.4V, identical to a "48V LiFePO4" charger. The labels differ but the electrical target is the same.
What connector is standard for 48V?
There is no single standard; XLR, M16/GX16, Anderson and proprietary carts connectors are all common. Match the connector to your pack or request a custom one.
How fast can I charge a 48V pack?
0.2C–0.5C is standard and safe. A 100Ah pack charges in ~2–5 hours at 20–50A, depending on thermal design and BMS limits.