Heltec Energy 8S 5A Active Balancer with Voltage Display for LFP/NCM/LTO Battery Packs

The Heltec Energy DS0877 is an 8S active battery balancer with built-in voltage display for battery builders who want cell voltage visibility and active balancing support.

This unit is useful for 8-series battery packs, testing setups, DIY battery builds, and maintenance workflows where cell balance matters.

Key features:
- 8S active balancing
- Built-in voltage display
- Supports NCM / LFP / LTO battery types
- Maximum balancing current up to 5A
- Balance voltage accuracy approximately 5mV
- Minimum balancing start voltage difference approximately 0.01V
- Displays total pack voltage and individual cell-string voltage
- No external power supply required
- Manual sleep/always-on button
- RoHS documentation available

Important:
This is an active balancer, not a BMS. It does not provide complete overcharge, overdischarge, short-circuit, or overcurrent protection. Use a properly rated BMS and fuse for a complete battery system.

Sodium-ion note:
Use with sodium-ion only when the sodium-ion cell voltage range is compatible with the balancer version. Standard units may sleep below approximately 2.7V on cell 1. For low-voltage sodium-ion operation, ask Saltra about the lower-voltage LTO-range version.

Included:
- 1x 8S active balancer with display
- 1x wiring harness
- Basic Saltra support notes

Spec:

Model: DS0877
Series count: 8S
Battery type: NCM / LFP / LTO
Display: Yes
Max balancing current: up to 5A
Balance voltage accuracy: approx. 5mV
NCM/LFP operating range: 2.7V–4.2V
LTO operating range: 1.8V–2.7V
Static operating current: approx. 20mA
Operating temperature: -10°C to 60°C
External power: Not required
Documentation: User manual and RoHS documentation available