Hi-PERFORMANCE Li-Po BATTERY PACKS FOR R/C VEHICLES
Trinity’s new Li-PRO packs eliminate the need for external voltage cutoff devices or speed controls with “LiPo safe” circuitry. The Reference Li-PRO packs have integrated circuitry to protect the battery against over-discharging–just drive as long as you like. In addition to over-discharge protection, Li-PRO packs offer superior safety with a fire-resistant case. 4500mAh capacity gaurantees long run times and super power for all electric RC cars and trucks.
Source : RCCA