SOLARPRO-GEL™ Series SOLARPRO-GEL™ Series –XUNZEL SOLARPRO-GEL™ Series –Battery Bank Product Overview • Totally Maintenance-Free Solar Battery Banks. Do not need to be refilled with water during the whole service life • Sealed & Safe. Non-spillable • Deep-cycle Valve-Regulated Lead-Acid (VRLA) GEL Battery Banks • Ideal for Medium and Large Off-Grid and Off-Shore Photovoltaic and Wind applications, UPS and Back-up, telecom and CATV, traffic, agricultural, marine and caravan, cathodic protection, professional installations,… • Allows horizontal installation • Rugged durability and long service life • Outstanding performance, even under extreme conditions • Robust positive tubular-plates to ensure high cycle life • Fully insulated battery design to ensure touch protection • Very good recharge behaviour • Excellent deep discharge capability • Low self-discharge rate and high efficiency • Easy access for measurements of e.g. voltage • Solve limited floor space and access problems on board boats and vehicles • Optional pole connectors available for different configurations • Available different racks models Industry Leading Technology for Off-Grid, Off-Shore and Backup Power Applications © Copyright Xunzel. Information contained in this document is subject to change without notice. [email protected] www.xunzel.com The design and all photographs and pictures of these product notes are protected by the Law and they cannot be distributed nor reproduced, neither totally nor partially, neither published nor used for any purpose without the express written consent of XUNZEL. © 2018-2019 XUNZEL - Xunzel does not take responsibility for typographical errors

SOLARPRO-GEL™ Series Models and Specifications 12V Battery Banks (6 cells/bank) Battery Model Bank Weight Kg 24V Battery Banks (12 cells/bank) Battery Model Bank Weight Kg SXPROGEL158B12 SXPROGEL238B12 SXPROGEL318B12 SXPROGEL397B12 SXPROGEL477B12 48V Battery Banks (24 cells/bank) Battery Model Bank Weight Kg Heigth Weight per per cell cell (H) 1,2) Internal resistance Ri and short circuit current Isc according to IEC60896-21 Height (H) is the máximum height between container bottom and top of the bolts in assembled condition. All values given in the table correspond to 100 % DOD without voltage...

SOLARPRO-GEL™ Series Design • Positive electrode: • Negative electrode: • Separation: • Electrolyte: • Container and lid: • Valve: • Pole bushing: • Protection: • Horizontal operation: tubular-plate with woven polyester gauntlet and solid grids in a corrosion-resistant PbCaSn-alloy grid-plate in PbCaSn-alloy with long-life expander material microporous separator sulphuric acid with a density of 1.24kg/l (20°C), fixed as GEL by fumed silica high impact ABS (Acrylonitrile-Butadiene-Styrene), grey coloured (colour may vary slightly from given image), UL-94 rating: HB, on request also in UL-94 rating...

SOLARPRO-GEL™ Series Installation Maintenance Operational Data • Depth of Discharge (DOD): • Initial charge current (Bulk): • Absorption / cyclic operation: • Float / non cyclic operation: • Adjustment of voltage: • Partial or complete discharge: • IEC 61427 Cycles: • Temperature: • Recommended temperature: • Self-discharge: -max. 80%U = 1.91V/cell for discharge times > 10h U = 1.74V/cell for discharge = 1h e -deep discharges of more than 80% DOD have to be avoided e unlimited, the minimal charge current has to be 1.5A/100Ah C 10 2.30V to 2.40V per cell, operating instruction is to be observed...