diff --git a/lib-bms-protocol/src/lib.rs b/lib-bms-protocol/src/lib.rs
index ca92124..95f8d90 100644
--- a/lib-bms-protocol/src/lib.rs
+++ b/lib-bms-protocol/src/lib.rs
@@ -171,6 +171,89 @@ impl BmsReadable for BatteryState {
     }
 }
 
+#[derive(Debug, Clone)]
+pub struct ChargeInfoWindowSec(pub u32);
+
+impl BmsReadable for ChargeInfoWindowSec {
+    fn read_from_i2c<I>(i2c_dev: &mut I) -> Result<Self, BmsProtocolError>
+    where
+        Self: Sized,
+        I: I2c<SevenBitAddress>,
+    {
+        let cmd = BmsRegisterMap::ChargoInfoWindowTotalSecs;
+        let mut charge_info_window_sec: [u8; 4] = [0x00; 4];
+        i2c_dev.transaction(
+            BMS_I2C_ADDRESS,
+            &mut [
+                Operation::Write(&(cmd as u32).to_be_bytes()),
+                Operation::Read(&mut charge_info_window_sec),
+            ],
+        )?;
+        Ok(ChargeInfoWindowSec(u32::from_be_bytes(
+            charge_info_window_sec,
+        )))
+    }
+}
+
+impl BmsWriteable for ChargeInfoWindowSec {
+    fn write_to_device<I>(&self, i2c_dev: &mut I) -> Result<(), BmsProtocolError>
+    where
+        I: I2c<SevenBitAddress>,
+    {
+        let cmd = BmsRegisterMap::ChargoInfoWindowTotalSecs;
+        i2c_dev.transaction(
+            BMS_I2C_ADDRESS,
+            &mut [
+                Operation::Write(&(cmd as u32).to_be_bytes()),
+                Operation::Write(&self.0.to_be_bytes()),
+            ],
+        )?;
+        Ok(())
+    }
+}
+
+#[derive(Debug, Clone, Copy)]
+pub struct ChargeInfo {
+    pub total_charge_ma: u32,
+    pub total_discharge_ma: u32,
+    pub max_charge_mw: u32,
+    pub max_discharge_mw: u32,
+    pub avg_voltage_mv: u32,
+}
+
+impl BmsReadable for ChargeInfo {
+    fn read_from_i2c<I>(i2c_dev: &mut I) -> Result<Self, BmsProtocolError>
+    where
+        Self: Sized,
+        I: I2c<SevenBitAddress>,
+    {
+        let cmd = BmsRegisterMap::ChargoInfoTotalChargeMilliAmpere;
+        let mut total_charge_ma: [u8; 4] = [0x00; 4];
+        let mut total_discharge_ma: [u8; 4] = [0x00; 4];
+        let mut max_charge_mw: [u8; 4] = [0x00; 4];
+        let mut max_discharge_mw: [u8; 4] = [0x00; 4];
+        let mut avg_voltage_mv: [u8; 4] = [0x00; 4];
+        i2c_dev.transaction(
+            BMS_I2C_ADDRESS,
+            &mut [
+                Operation::Write(&(cmd as u32).to_be_bytes()),
+                Operation::Read(&mut total_charge_ma),
+                Operation::Read(&mut total_discharge_ma),
+                Operation::Read(&mut max_charge_mw),
+                Operation::Read(&mut max_discharge_mw),
+                Operation::Read(&mut avg_voltage_mv),
+            ],
+        )?;
+        Ok(ChargeInfo {
+            total_charge_ma: u32::from_be_bytes(total_charge_ma),
+            total_discharge_ma: u32::from_be_bytes(total_discharge_ma),
+            max_charge_mw: u32::from_be_bytes(max_charge_mw),
+            max_discharge_mw: u32::from_be_bytes(max_discharge_mw),
+            avg_voltage_mv: u32::from_be_bytes(avg_voltage_mv),
+        })
+    }
+}
+
 #[repr(u32)]
 #[non_exhaustive]
 pub enum BmsRegisterMap {
@@ -190,4 +273,12 @@ pub enum BmsRegisterMap {
     BatteryCurrentVoltageMilliVolt = 0x00020008,
     BatteryTemperatureCelcius = 0x0002000c,
     BatteryHealthPercent = 0x00020010,
+    // Charge Window Read/Write Address
+    ChargoInfoWindowTotalSecs = 0x0003000,
+    // Charge Info Value Start Here
+    ChargoInfoTotalChargeMilliAmpere = 0x0003004,
+    ChargoInfoTotalDischargeMilliAmpere = 0x0003008,
+    ChargoInfoMaxChargeMilliWatt = 0x000300c,
+    ChargoInfoMaxDischargeMilliWatt = 0x0003010,
+    ChargoInfoAvgVoltageMilliVolt = 0x0003014,
 }