Valence U1-12RT 12.8v 37Ah TESTED Lithium Iron Magnesium Phosphate Battery

Valence U1-12RT 12.8v 37Ah TESTED Lithium Iron Magnesium Phosphate Battery

These batteries were removed from Medical Carts at the end of their service life. All bad(red blinking, or low voltage) modules are recycled. Only green blinking modules are retained for Refurbishment. All acceptable modules are capacity tested and charged to keep the voltage from dropping too low during storage. These modules have the Valance warranty sticker over the BMS cover intact, none of them are opened or reset.

Batteries were tested under real world conditions. Charged to 14.6V with a 7A cut-off. Battery voltage settles and we discharge at 20A until it reaches 10V. This represents actual real world usable capacity. Whole test takes 2 hours.

The battery includes charging and discharging protection, MOSFETs inside will cut-off the power if more then 30A is applied for longer than 30 seconds. It will also disconnect the battery if it is being overcharged, and will not power a load if it is being over discharged. Separately controlled MOSFETs will only prevent one or the other at a time, so you can still charge it is it is too low, but you will not be able to discharge it, and vise versa. Charge will disconnect if any cell reaches 3.9V, and reconnect when the voltage drops to 3.7V. Discharge will disconnect when any cell reaches 2.45V, but it will still charge. This battery is a ready to go solution for any application with a continuous load of under 30 A.

LED indicator guide

Green Quick (0.5s): Idle, all good.

Green Long (1s): Charging or discharging, all good.

Yellow(looks like red and green): Charge level less than %20SoC recharge immediately, or battery is near thermal limit and is close to overheating.

Red: Low Charge level or issue with the battery or BMS. See Low Voltage Recharge instructions.

No Light: Battery charge depleted to %0 and BMS shut off. See Low Voltage Recharge instructions.

BMS will automatically balance the cells within one module during the top of the charge. Will not balance between modules when hooked up in series, only in parallel.